Sprint Science group- t.me/joinchat/RYszj_1cAl8xEvnv Sprint Social Science- t.me/joinchat/GCBE5bDgFdxrZeI8 Sprint Mathematics group- t.me/joinchat/GBbG4p5S_OVRV920 ----------------------------------------------------------------------------- Scheduled Syllabus For Sprint ( Class 9th ) released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Duration:-1 month (Jan 2021 - Feb 2021) Free Batch Exclusive on our UA-cam Channel : Physics Wallah Foundation - 9 & 10 Batch Details 1)Best Faculties across India for different Subject/Topics. 2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021 3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST) Physics : Tues, Thurs, Sat Chemistry: Mon , Wed , Fri Mathematics: Mon, Tues, Wed, Thur , Fri, Sat Biology: Wed , Thur , Sat S.ST : Mon, Tues, Wed, Thur , Fri, Sat 4)Scheduled Syllabus released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6
Momentum=p Velocity=v Mass=m # Momentum =mass×Velocity P=mv Change in velocity=(v-u) # Change in momentum = mass×change in velocity =m(v-u) =mv-mu # Rate of change in momentum=m(v-u)/t =mass×acceleration =ma [where(a=(v-u)/t)] Rate of change of momentum is directly proportional to force That means Ma=k×f [where k=constant of variable ,] [K=1] # Force Force(f)=(ma)rate of change of Momentum
Newtons 4th law of motion :- A book remains in the state of rest and covered with dust until and unless internal and external exams appeared and then the speed of turning pages is directly proportional to the syllabus covered and the tension in the mind remains constant
Newtons 4th law of motion :- A book remains in the state of rest and covered with dust until and unless internal and external exams appeared and then the speed of turning pages is directly proportional to the syllabus covered and the tension in the mind remains constant Edit:- Legends gud luck for ur tomorrow's exams
25:30 (c) F21 = m4w × a F21 = Force applied on Wagon 2 by Wagon 1 m4w = mass of 4 wagons a = acceleration of the train The force of wagon 1 on wagon 2 = Force of wagon 2 on wagon 1 ⇒ (4 × 2000 × 1.944) = 15552 N ∴ The force of wagon-1 on the wagon-2 is 15552 N.
Newton's fourth law- Every book continues to be at rest and covered with dust until and unless internal or external exams appears. The speed of page turning is directly proportional to the syllabus to be covered , but tension remains constant😀😀😀
Dude...as a senior 👀 I want too say that..study these chapters carefully , if u forget thiss chapters.... Then u can't handle class 11th bcuz this is the base of class 11th♥️ Hope this help u😊>>
Ma'am I have a doubt - If an object weighing certain kg is pulled towards right with 60N and shortly afterwards pulled towards left with 100N will the amount of effort needed to pull the object to the left will be sum of the weight of object and 60N? So we shall be not considering the force to the left 100N?Acceleration will take place exaggeratedly? So it shall be in motion? CONSUMMATIVE CLARIFICATION NEEDED- Student of 9th~
I think 100N force will only be needed to pull the object toward the left. If the mass is given, then acceleration can be calculated with the help of F=ma.
@@EMK0379 The object's weight (its pull due to gravity) doesn't affect how much force you need to pull it horizontally left or right. The forces you use for pulling left and right are different from its weight.
Homework Question Q1. As inertia is directly proportional to mass we can say that - a. A stone will have more inertia b. A train ....... c. A 5 Rs coin ...... Q2. Friction will apply due to the the grassy surface and so it will stop i.e Option B ( Opposing force )
25:00 Q3- Let the acceleration of the wagons be a 35000=(5m)a 35000=10000×a Acceleration of the wagons a =3.5 ms −2 Mass of last 4 wagons m =4×2000 kg ∴ Net force on last 4 wagons T=8000×3.5 =28000 So, form 2 to 5 all 4 wagon making force of 28000 N on wagon1
Answer: The force of Wagon 1 on Wagon 2 = The force of Wagon 2 on Wagon 1 (Newton's 3rd Law - Reaction Force) Force = Mass x Acceleration Force of Wagon 2 on Wagon 1 = (Total Mass of Wagons 2,3,4 and 5) x 35000/18000 *(I have taken acceleration as 35000/18000 to get a more exact answer) = (4 x 2000) x 35000/18000 = 8000 x 35000/18000 = 280000/18 This in decimal form comes out to be 15555.5555..... which can be rounded off to 15556 N So final Answer = 15556 Newon Hope this helps!
Inertia is proportional to mass Q1 A. Stone has more mass,more inertia B.train has more mass, more inertia C.five ruppee coin has more mass, more inertia Q2 C option
Here, acceleration of the train is 1.9, which is equally distributed to each wagon so their acceleration is also 1.9 Now, if when the train moves there will be a thrust, I.e. acceleration 1.9×2000= 3800
1 . Which of the following has more inertia . a) Stone of the same size . b) train c) five rupees coin 2. a) the batsman did not hit the ball hard enough ❤❤❤ 2
Thank you sir for such a wonderful lectures 💙💙 In starting I thought that physics a very hard to understand but through your lectures I understood it very nicely !! I go through all the sessions of Ch 8 and 9 . Now I don't have any doubts regarding numericals, theories !!! ❤️❤️❤️
NCERT numerical : (iii): F=ma Wagon 1 is pulling the wagon 2,3,4,5 not only wagon 2(connective force) F= 4×2000+1.9 =8000×19/10 =800×19 =15200 Newton or kgm/s² Challenge question 1 (a) a stone (b) a train (c) there are many types of coins of one rupee, if one rupee coin mass has less than five rupee than five rupee coins has more inertia. 2)(c) there is a force on the ball opposing the motion. The forces are frictional force and gravitational force .
Homework q-Force of wagon 1 on wagon 2 Sol-Acceleration of wagon=40000-5000/mass of 5 wagons =40000-5000/10000=3.5 Force of wagon 1 on wagon 2=mass of 4 wagon × acceleration of wagons=4×2000×3.5=28000N
@@sanskritisingh435 because object which have more mass will have more inertia compared to the other object... Or you can understand by this statement Object which have more mass compared to the others will have more inertia .
Hey👋, 1st homework answer: Net force = 35k N Total wagon drawn by the engine = 5 Force exerted for per wagon = 35k N/5 = 7k N Force exerted from wagon 1 to wagon 2 = 35k N - 7k N= 28k N 2nd homework answer: 1- Stone of the same size 2- A train 3- 5(Five) rupee coin [Explation: As per of text, More the mass is equals to more the Inertia. As the following body have higher weight than the others. So, it will require greater force to interrupt its previous state or inertia. Therefore these have more inertia.] 3rd homework answer: Option - (C) There is a force on the ball opposing the motion [Explanation: The friction on the ground will oppose the motion of the ball.] Please correct me if I'm wrong!
@@startingjourney Thanks! Yes, You're correct While writing answer I thought of bigger 1 rupee coin Well I'll correct it! BTW I guess you're in class 8th
Homework question 2 The answer is option c there is the force on the ball opposing the motion that is the frictional force which opposes the motion of the ball.
HW ques:- 1.(a) a stone of the same size b. a train c. a 5 rs coin 2. answer- it is bcuz of the friction of the ball on the ground and gravity of the earth and last but not the least air's friction
25:09 Wagon 1 on Wagon 2 has a force of 8000N Because the total Force given is 40,000N and each of the Wagons is 2000Kg. so the total mass is 18000Kg. If the engine required 40,000N to pull all the five wagons of Mass 10,000 Kg. It will take 4N to pull 1kg. Wagon is of 2000Kg So the engine will require 8000N to pull Wagon 1 And as there are 5 wagons so the total Force will be 40000N( Given ) So each wagon will pull the other one with the force of 8000N
1Stone 2 train 3 Five rupess coin question second (C) there is a force on the ball opposing the motion 41:43 😊 🎉 thank you so much sir you are the best teacher in Physics😊
Homework question answer 1.a) stone have more inertia b) train have more inertia .c) 5 rupee coin have more inertia 2.c) there is a force on the ball opposing the motion 🙏
NCERT first numerical C part solution Since beside 1 wogns there is is 4 and other woogans so when first organ full II it consecutively pools all the another decided so F=m a = 2000 x 4 x 1.9 = 152 200 Newton answer Thanku
Question is to find the force exerted by wagon a on wagon be not find the force exerted by wagon a on remaining wagon the correct answer is 3,888.88 by Force = m× a Force = 2000 × 1.94 = 3,888.88
F21 = m4w × a F21 = Force applied on Wagon 2 by Wagon 1 m4w = mass of 4 wagons a = acceleration of the train The force of wagon 1 on wagon 2 = Force of wagon 2 on wagon 1 ⇒ (4 × 2000 × 1.944) = 15552 N ∴ The force of wagon-1 on the wagon-2 is 15552 N.
Thank you so much sir.... and physics wallah ....to provide syllabus videos in this lockdown due to corona virus... hope to get that type of teacher in offline classes too...
Homework questions 1a - A stone has more inertia 1b -a train has more inertia 1c-a 5 rupee coin has more inertia All because these things have more mass and inertia is directly proportional to the mass of the body.
(c) Mass of 4 wagons (excluding wagon 1) m = 2000 × 4 = 8000 kg Acceleration of the train = 1.944 m/s2 The force of wagon 1 on wagon 2=8000 x 1.944 = 15552N
1. Ans- a) A stone of same size b) A train c) The coin which has more mass 2. Ans- c) There is a force on a the ball opposing the motion (frictional force).
Homework....... A) Stone B) Train C) 5rs coin (Concept of mass)( Inertia is proportional to mass) 2) There is a opposing force acting on the ball( gravitation).
Sprint Science group-
t.me/joinchat/RYszj_1cAl8xEvnv
Sprint Social Science-
t.me/joinchat/GCBE5bDgFdxrZeI8
Sprint Mathematics group-
t.me/joinchat/GBbG4p5S_OVRV920
-----------------------------------------------------------------------------
Scheduled Syllabus For Sprint ( Class 9th ) released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App :bit.ly/2SHIPW6
Duration:-1 month (Jan 2021 - Feb 2021)
Free Batch Exclusive on our UA-cam Channel : Physics Wallah Foundation - 9 & 10
Batch Details
1)Best Faculties across India for different Subject/Topics.
2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021
3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST)
Physics : Tues, Thurs, Sat
Chemistry: Mon , Wed , Fri
Mathematics: Mon, Tues, Wed, Thur , Fri, Sat
Biology: Wed , Thur , Sat
S.ST : Mon, Tues, Wed, Thur , Fri, Sat
4)Scheduled Syllabus released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App :bit.ly/2SHIPW6
Physicswallah Instagram Handle : instagram.com/physicswallah/
Physicswallah Facebook Page: facebook.com/physicswallah
Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20
Physicswallah App on Google Play Store : bit.ly/2SHIPW6
Thank you sirrrr......
Sir live kb aa te h àp...
live classes cab hoga
Love you sir 😘💝
Wagon 28000n
Momentum=p
Velocity=v
Mass=m
# Momentum =mass×Velocity
P=mv
Change in velocity=(v-u)
# Change in momentum = mass×change in velocity
=m(v-u)
=mv-mu
# Rate of change in momentum=m(v-u)/t
=mass×acceleration
=ma [where(a=(v-u)/t)]
Rate of change of momentum is directly proportional to force
That means
Ma=k×f [where k=constant of variable ,]
[K=1]
# Force
Force(f)=(ma)rate of change of Momentum
🔥🔥🔥🔥🔥💯
🤜🏻🤛🤜🏻🤛🤜🏻🤛
❤
What is u
Reply pls
Luckiest day of my life when I have found this channel
@@tushar9618 what happen
@@adityaraj1154 Same Name :)
@@adityatekale8261 😇
Yeah mine too
Pass ho jaoge kya😛
Newtons 4th law of motion :-
A book remains in the state of rest and covered with dust until and unless internal and external exams appeared and then the speed of turning pages is directly proportional to the syllabus covered and the tension in the mind remains constant
And until your dream is to become an iitian 🔥🔥🔥🔥
😅😂
🗿🗿🗿🗿🗿🗿🗿
14:59 sir toh google ko galat kar diye 😀
Until the syllabus is covered
Newtons 4th law of motion :-
A book remains in the state of rest and covered with dust until and unless internal and external exams appeared and then the speed of turning pages is directly proportional to the syllabus covered and the tension in the mind remains constant
Edit:- Legends gud luck for ur tomorrow's exams
You are genius 🙂
Nice law💀 I'm gonna explain this topic to the teachers
@@Anas14369 lol u stole my idea
it would be inversly proportional
Dam bro got new law 😓
Homework
1(a) A stone
1(b) train
1(c) five rupees coin
2- there is a force on the ball opposing the motion
Edit - Thank you so much sir 🙏💞
Nice ❤
7 crore 😂
7 CRORE 🎉😅
8 Crore😅🎉🥰
10 crore🎉🎉
41:40
(1)= a - stone
b- train
c- a five rupee coin
(2)= option C...❤🎉
✨✨❤️❤️
25:30
(c) F21 = m4w × a
F21 = Force applied on Wagon 2 by Wagon 1
m4w = mass of 4 wagons
a = acceleration of the train
The force of wagon 1 on wagon 2 = Force of wagon 2 on wagon 1
⇒ (4 × 2000 × 1.944)
= 15552 N
∴ The force of wagon-1 on the wagon-2 is 15552 N.
😀
It's wrong cuz 1.944 isn't accurate... It's rounded value
Sabas!
Nice 🙂👍😎
Muja toh answer nai pata
I am in 10th when I found this channel and on that day I felt in love with Physics and Rakshak sir is a legend teacher
Tru love
I found this in 8th class and i have completed till 10th class now 😅😅👌👌 because it the best study channel, i am now in 8th 😅
@@jibankrushnajena2616 Bro you completed "till 10th" science that's good but you better complete "till 7th" english too 💀.
@@jibankrushnajena2616 omg
This is class 9 video, but learning has no limt
25:26 Ans.
3800 N
F=ma
2000×1.9 ( 2000 mass of 1st wagon)
=3800 Newton
@Prayas batch comedy and motivation how didnt you know
@Prayas batch comedy and motivation padhaku log
Please can you explain it betterly
Bhut sahi yaar main bhi close tha
Wrong
Newton's fourth law-
Every book continues to be at rest and covered with dust until and unless internal or external exams appears.
The speed of page turning is directly proportional to the syllabus to be covered , but tension remains constant😀😀😀
This is Newton's first law
1 (a)- a stone
(b)- a train
(c) a five rupees coin
2 -(c) force on the ball opposing the friction (i.e. Frictional force)
Homework Questions
1. (a) A Stone
(b) A Train
(c) A five rupees coin
2. OPTION C (There is a force on the ball opposing the motion).
Friction force😉
@@shifanaseem6191 correct 👍
@@shifanaseem6191 or Gravitational force which provides frictional force in this case.
@@Smile-zd7ki good job😂😂
@@shifanaseem6191 correct
1(a)-stone
1(b)-train
1(c)-five rupees coin
2-there is a force on the ball opposing the motion.
Sir bahut accha padhate ho aap.🤩🙏
same ans .
Same
Same
Dude...as a senior 👀
I want too say that..study these chapters carefully , if u forget thiss chapters....
Then u can't handle class 11th bcuz this is the base of class 11th♥️
Hope this help u😊>>
Ma'am I have a doubt - If an object weighing certain kg is pulled towards right with 60N and shortly afterwards pulled towards left with 100N will the amount of effort needed to pull the object to the left will be sum of the weight of object and 60N? So we shall be not considering the force to the left 100N?Acceleration will take place exaggeratedly? So it shall be in motion?
CONSUMMATIVE CLARIFICATION NEEDED- Student of 9th~
I think 100N force will only be needed to pull the object toward the left. If the mass is given, then acceleration can be calculated with the help of F=ma.
Tnx bhai
Oo thk ha ab achai sa padhae ga
@@EMK0379 The object's weight (its pull due to gravity) doesn't affect how much force you need to pull it horizontally left or right. The forces you use for pulling left and right are different from its weight.
hw ques
a. a stone
b. a train
c. five rupee coin
2. there is a force on the ball opposing the motion
wonderful session really loved it....
Force of 1st wagon on 2nd wagon
=Net accelerating force-(mass of 1 wagon-acceleration)
= 35000 - (2000 - 1.9)
= 33002 N (approax)
Answer will be like 15520......
@@dreamer4044 lmao 😂
Galat answer hai lol
18000- 2000into 1.9=15520
Well 😆😁
(C) the force of wagon 1 on wagon 2 is
Mass of 4 wagons behind the wagon 1 x acceleration
8000kg x 1.9 m/s'2
15200N
Shi h 👍👍
👍👍👍
wrong
@@letsdoeverything4564 kyuki bhai woh aur wagons ko bhi force lga rha h
Hmm
1(a) a rubber ball
(b) a train
(c) a 5 rupee coin
2(c) there is a force on a ball opposing the motion
Homework Question
Q1. As inertia is directly proportional to mass we can say that -
a. A stone will have more inertia
b. A train .......
c. A 5 Rs coin ......
Q2. Friction will apply due to the the grassy surface and so it will stop
i.e Option B ( Opposing force )
Q2 option C will happened
Q1
Option c is correct
Answer to homework questions:-
1(a) Stone
(b) Train
(c) Five rupees coin
2) there is a force on the ball opposing the motion
Same:)
The name of force is friction
Same answer :) -
Same answer
🙏🙏
Question 1(a)=stone 2(b)=train 3(c)=5 Rs coin Question 2=there is a force on the ball opposing the motion.
How stone??? And how the ball stop??
@@neelamkayat4040 Stone because it has higher mass and the ball stops because an external force i.e air friction opposes the motion of the ball
@@taggy9117 thanku
@@neelamkayat4040 welcome :)
@@neelamkayat4040 more the mass will more the inertia
Thank you so much sir
For clearing my doubt.
❣ Answer,❣
1. A rubber ball
2. A train
3. A one rupee coin.
25:00
Q3- Let the acceleration of the wagons be a
35000=(5m)a 35000=10000×a
Acceleration of the wagons
a =3.5 ms −2
Mass of last 4 wagons
m =4×2000 kg
∴ Net force on last 4 wagons
T=8000×3.5 =28000
So, form 2 to 5 all 4 wagon making force of 28000 N on wagon1
You should count the engine as well
@@krishna290gamer2aare bhai topper wali website se copy karke paste kiya hai isne
@@RISUPANDEY topper wali website pe bhi to students hi answer post karte hai
@@RISUPANDEY Topper pe galat solutions bhi hai don't trust topper *completely*
@@krishna290gamer2 nhi bhai mene maths ke exam ke liye toppr ke question solve kiye hai bahut helpful hote hai
sir answer is
force of wagon 1=mass of 4 wagons multiply acceleration
on wagon 2 (behind wagon 1 ) of train
2000multiply 4 multiply 3.5 =28000 N
Yes how???
Answer:
The force of Wagon 1 on Wagon 2 = The force of Wagon 2 on Wagon 1 (Newton's 3rd Law - Reaction Force)
Force = Mass x Acceleration
Force of Wagon 2 on Wagon 1 = (Total Mass of Wagons 2,3,4 and 5) x 35000/18000
*(I have taken acceleration as 35000/18000 to get a more exact answer)
= (4 x 2000) x 35000/18000
= 8000 x 35000/18000
= 280000/18
This in decimal form comes out to be 15555.5555..... which can be rounded off to 15556 N
So final Answer = 15556 Newon
Hope this helps!
Inertia is directly proportional to mass of body.
1 A)stone. B) train. C) 5 rupee coin
2. There is force on the ball opposing the motion. (C)
b
🪯🪯🪯🪯🪯🪯🛜🛜🛜🫥🫥🫥🫥🫡🫡🫡🪮🪮🪮🧌🧌🧌🧌🧋🧋🧋🧋🩻🩻🩻🩻🩻🫧🫧🫧🪩🪩🪩🫗🫗🪬🪬🪬
〰〰〰〰〰
〰〰🍒〰〰
〰🍰🍰🍰〰
🍥🍥🍥🍥🍥
🍰🍰🍰🍰🍰
🍥🍥🍥🍥🍥
〰〰〰〰〰
〰〰〰〰〰
🌒🌓🌔🌕🌖🌗🌘
🌙❤❤🌙❤❤🌙
❤💓💓❤💓💓❤
❤💓💓💓💓💓❤
🌙❤💓💓💓❤🌙
🌙🌙❤💓❤🌙🌙
🌙🌙🌙❤🌙🌙🌙
🌒🌓🌔🌕🌖🌗🌘
🌟。*。💗~😃xXx
。💚。*。Have。🌟
🌟。a wonderful day.
.💜´*。.🌟¨¯`*❤。。🌟 💣💥🐄🍼🐄🍼🌇🌅
🌒🌓🌔🌕🌖🌗🌘
🌙❤❤🌙❤❤🌙
❤💓💓❤💓💓❤
❤💓💓💓💓💓❤
🌙❤💓💓💓❤🌙
🌙🌙❤💓❤🌙🌙
🌙🌙🌙❤🌙🌙🌙
🌒🌓🌔🌕🌖🌗🌘
🌒🌓🌔🌕🌖🌗🌘
🌙❤❤🌙❤❤🌙
❤💓💓❤💓💓❤
❤💓💓💓💓💓❤
🌙❤💓💓💓❤🌙
🌙🌙❤💓❤🌙🌙
🌙🌙🌙❤🌙🌙🌙
🌒🌓🌔🌕🌖🌗🌘
🌒🌓🌔🌕🌖🌗🌘
🌙❤❤🌙❤❤🌙
❤💓💓❤💓💓❤
❤💓💓💓💓💓❤
🌙❤💓💓💓❤🌙
🌙🌙❤💓❤🌙🌙
🌙🌙🌙❤🌙🌙🌙
🌒🌓🌔🌕🌖🌗🌘
25:25 Sir, the answer is 15520 N
Inertia is proportional to mass
Q1
A. Stone has more mass,more inertia
B.train has more mass, more inertia
C.five ruppee coin has more mass, more inertia
Q2
C option
Bhai jo line likhi hai na wo dil jit liya ek line concept clear
I think that the inertia of 5 rupee coin and 1 rupee coin is same
@@rajanchawla883 No its not, because Rs 5 has more mass than Rs1.
@@ayushsharma8911 hi
Here, acceleration of the train is 1.9, which is equally distributed to each wagon so their acceleration is also 1.9
Now, if when the train moves there will be a thrust, I.e. acceleration 1.9×2000= 3800
Right
Bro wagon 1 is pulling 4 wagons this means the mass of them will 8k the force will be: 1.9x8000= 15200N
@@karannmusicc yes, I think
@@karannmusicc Right 👍
@@karannmusicc but we only have to consider the mass of wagon 2 not tHE WAGONS behind it!
Sir samaj aa gaya
1 . Which of the following has more inertia .
a) Stone of the same size .
b) train
c) five rupees coin
2. a) the batsman did not hit the ball hard enough ❤❤❤
2
Yes it's simple related to weight of an object if any object has more weight than other then it has more inertia 😊
Homework 1.Que- A- Stone , B- train, C- five rupees ,. 2.Ques- C is correct options Sir ❤️, there is a force on the ball opposing the motion.
Thank you sir for such a wonderful lectures 💙💙 In starting I thought that physics a very hard to understand but through your lectures I understood it very nicely !! I go through all the sessions of Ch 8 and 9 . Now I don't have any doubts regarding numericals, theories !!! ❤️❤️❤️
Jeete raho beta🙌
Q1(a) stone (b) Train (c) a five rupee coin.
Q2 There is a force on the ball opposing the motion.
1.(a) stone
(b)Train
(c)A five rupee coin
2.(c) Because of friction
Q1::a) Stone
b) Train
c) Five Rupees Coin
Q2:: (c) there is a force on the ball opposing the motion
Crrect answer
Crrect answer
Homework Questions
1) (a) Stone
(b) Train
(c) Five rupees coin
2) (c) there is a force on the ball opposing the motion.
Waah Bhai
I want to give your video millions of like 😅😅
I like your teaching style too much 😁😁
Homework
1(c) 5 rupees coin and a 1 rupees coin
2(c) there is a force on the bol opposing the motion
NCERT numerical :
(iii): F=ma
Wagon 1 is pulling the wagon 2,3,4,5 not only wagon 2(connective force)
F= 4×2000+1.9
=8000×19/10
=800×19
=15200 Newton or kgm/s²
Challenge question 1
(a) a stone
(b) a train
(c) there are many types of coins of one rupee, if one rupee coin mass has less than five rupee than five rupee coins has more inertia.
2)(c) there is a force on the ball opposing the motion.
The forces are frictional force and gravitational force .
i dont think multiplying by 4 is required.. is it? (in iii)
@@sushii4213 Yes, because force is applied not only in wagon 2 , also in wagon 2,3,4,5,that's why we have to calculate the mass of wagon 2,3,4,5.
@@k.t.-thefactician825 ya but the question is asking about the force of wagon 1 on wagon 2..
@@sushii4213 Force is connective, we can't find the force of wagon 1 on wagon 2,we have to find all four wagon.
frictional
Reall u are a best teacher of physics 🤗😍
Homework 🏘️ questions :-
1. (a) stone
(b) a train
(c) a five rupees coin
2. (c) there is a force on the ball opposing the motion .
1.
(a). a stone
(b).a train
(c).five rupee
2.(c).
hw
1.(a)stone
(B) TRAIN
(C) 5 rupee coin
2.option c
There is a force on ball opposing motion
1- (a) - a stone
(b)- a train
(c)- a five rupees coin
2- c✔️ ( there is a.force on the ball opposing the motion)
Keep it up ARMY bestie ...if you don't sudy..then RM will cut your eyebrows...
@@kimchiramen3640 you are correct💜💜
@@pinktanis..7687 yes yes 😂
Session was very mind blowing
H.w=1 ,a)stone b) train. C) five rupees
2)c) there is a force on the ball opposing the motion
2nd one is c because of friction correct
Lovely idea meri jaan to the write answer 💓💋
Homework
q-Force of wagon 1 on wagon 2
Sol-Acceleration of wagon=40000-5000/mass of 5 wagons
=40000-5000/10000=3.5
Force of wagon 1 on wagon 2=mass of 4 wagon × acceleration of wagons=4×2000×3.5=28000N
a)stone
b)train
c)five rupees
2. c)there is a force on ball opposing the motion
thank you so much sir itna acche se padhaane ke liye
Why the answer of 1c is 5 rupee coin ?
@@sanskritisingh435 because object which have more mass will have more inertia compared to the other object...
Or you can understand by this statement
Object which have more mass compared to the others will have more inertia .
14:59 sir a lot of thanks to clear my misconceptions and this question came in my examination and I made it wrong ... ab aa gaya samaj me
Sir hai
Nice sir and thank you this lecture
2 (c) part there is a force opposing ball
Hey👋,
1st homework answer:
Net force = 35k N
Total wagon drawn by the engine = 5
Force exerted for per wagon = 35k N/5 = 7k N
Force exerted from wagon 1 to wagon 2 = 35k N - 7k N= 28k N
2nd homework answer:
1- Stone of the same size
2- A train
3- 5(Five) rupee coin
[Explation: As per of text, More the mass is equals to more the Inertia.
As the following body have higher weight than the others.
So, it will require greater force to interrupt its previous state or inertia.
Therefore these have more inertia.]
3rd homework answer:
Option - (C)
There is a force on the ball opposing the motion
[Explanation: The friction on the ground will oppose the motion of the ball.]
Please correct me if I'm wrong!
In 1st hw ans should be 21
@@Lencho0p but how
Bro 5 rupees coin have more inertia
Bro your last line is so good
@@startingjourney
Thanks!
Yes, You're correct While writing answer I thought of bigger 1 rupee coin
Well I'll correct it!
BTW
I guess you're in class 8th
Really a legendary teacher of physics 👏
You are right
😯
Homework
1 (a) stone
(b) Train
(c) Five rupees coin
2
Ans. C
Wagon 1 is applying 7000N force to wagon 2
Homework question 2
The answer is option c there is the force on the ball opposing the motion that is the frictional force which opposes the motion of the ball.
Q1?
1.inertia of a stone is more than the inertia of a rubber ball for the same size.
2. Train
3.5₹
1.) (a)stone
(b) train
(c)5rupess coin
2.)there is a force on the ball opposing the motion
HW ques:-
1.(a) a stone of the same size
b. a train
c. a 5 rs coin
2. answer- it is bcuz of the friction of the ball on the ground and gravity of the earth and last but not the least air's friction
topper ha :D
1. (a) Stone
(b) Train
(c) 5 rupees coin
2. option 'C" - there is a force on the ball opposing the motion
Yea correct answer even I wrote that
41:49
Home work question answer:-
1) :-a) a stone
b) a train
c) a five rupees coin
2) :- (c)
Question no. 1
Ans stone 🪨 of same size
B=train
C=five rupees coin
Question no. 2
Option d is correct
Sir pls tell which is wrong or right
25:09
Wagon 1 on Wagon 2 has a force of 8000N
Because the total Force given is 40,000N and each of the Wagons is 2000Kg. so the total mass is 18000Kg.
If the engine required 40,000N to pull all the five wagons of Mass 10,000 Kg.
It will take 4N to pull 1kg.
Wagon is of 2000Kg
So the engine will require 8000N to pull Wagon 1
And as there are 5 wagons so the total Force will be 40000N( Given )
So each wagon will pull the other one with the force of 8000N
Good👍
Your answer is wrong...
It would be 15552 N....
@@funtoonindia2415 can you explain 🤔
@Success Centre bro only the force of wagon 1 on 2 is asked and you are putting the force as 8000 kg which is actually 2000 kg mass
@Success Centre 8000 is the engines mass which is pulling 10,000 kg wagons
Homework questions
1)i)stone
ii)a train
iii)a five-rupee coin
2)there is a force on the ball opposing it that is friction.
1Stone
2 train
3 Five rupess coin
question second (C) there is a force on the ball opposing the motion 41:43 😊 🎉
thank you so much sir you are the best teacher in Physics😊
Thanku sir for this wonderful lecture❤😊
Sir aap ne inertia concept mai jaan daal di....superb explanation with animation too 👏👏👏❤️🙏
You are the best teacher of Physica, Thank you very much sir
Very useful class ☺️
I really enjoyed the class and learned a lot
Homework question answer
1.a) stone have more inertia
b) train have more inertia .c) 5 rupee coin have more inertia
2.c) there is a force on the ball opposing the motion 🙏
1 (i)ans.- a stone (ii) ans.- a train (iii)ans.- a five rupees coin ,2ans.-there is the force on the ball opposing the motion
14:56,13:46 thank you sir fot telling so important concept.
What a teaching sir
You are unbelievable
Tension = 15400N.
First ans=b.
Second ans=c.😊
❤️😭 can I just say your videos are no less than a blessing 💕God bless you guyssss 😭
True
Hii
Hello
Hello
Apna no. Dedo
challenger questions answers
Q1 ans a stone b train c 5rupee coin
Q2 ans c
Nice
😊😊
Q.1) a) A stone
b) A train
c) A five rupees coin
Q.2) c) There is a force on the ball opposing the motion.
This is the most valuable video of your.
NCERT first numerical C part solution
Since beside 1 wogns there is is 4 and other woogans so when first organ full II it consecutively pools all the another decided so
F=m a = 2000 x 4 x 1.9 = 152 200 Newton answer
Thanku
it would be 15200 N
@@wavy7572 he wrote that only
No
The accurate ans is
15,500N
I calculated by Ratio method
a=1.9 is not the accurate
That's why your ans is not accurate
👍👍👍
Question is to find the force exerted by wagon a on wagon be not find the force exerted by wagon a on remaining wagon the correct answer is 3,888.88 by
Force = m× a
Force = 2000 × 1.94 = 3,888.88
700N force lagayega
F is M x A
The force of two wagons will be
4000 x 1.9
Force will be 7600
Is this correct Sir?
Y es
Yes maybe🙌 we both have same ans.
F21 = m4w × a
F21 = Force applied on Wagon 2 by Wagon 1
m4w = mass of 4 wagons
a = acceleration of the train
The force of wagon 1 on wagon 2 = Force of wagon 2 on wagon 1
⇒ (4 × 2000 × 1.944)
= 15552 N
∴ The force of wagon-1 on the wagon-2 is 15552 N.
@@SHVTR nope ! Coz mass is inversely proportional to acceleration.
We have to answer Wagon 2 on 1 not 4 Wagons on wagon 1 so,
T=Ma
T=2000(Mass of wagon 2) × 1.9(a)
T=3800N
Sir your teaching helped me a lot before exam
1 night before ? 😂😂
1
a ans - a stone of the same size
b ans - a train
c ans- five rupees coin
2 ans-OPTION C
I like teachers like you who expose RAAZ means you even oppose concept of physics but some teachers only depend on book
Thank you so much sir.... and physics wallah ....to provide syllabus videos in this lockdown due to corona virus... hope to get that type of teacher in offline classes too...
Homework questions
1a - A stone has more inertia
1b -a train has more inertia
1c-a 5 rupee coin has more inertia
All because these things have more mass and inertia is directly proportional to the mass of the body.
And the ball stops because there is a force on ball opposing the motion, it is friction force
(c) Mass of 4 wagons (excluding wagon 1)
m = 2000 × 4 = 8000 kg
Acceleration of the train
= 1.944 m/s2
The force of wagon 1 on wagon 2=8000 x 1.944
= 15552N
Finally found it
Homework question Answer
Q1. (a) stone
( b) train
(c) five rupees coin
Q2: (c) there is a force on the ball opposing the motion.
Best Teacher for me in this whole universe 🙏🙏🙏🙏🙏🙏.... Thanks a lot sir
The way he explained just.... Amazing
Homework questions
Q_1
Ans -(a) stone
(b) train
(c) a five rupees coin
Ans 2
Option (c) there is a force on the ball opposing the motion.
love from physics lover DR. ROHIT RANJAN
Pw is the best platform for study thankyou sir for a great explanation 🌟🌟🌟🌟🌟
1.
Ans-
a) A stone of same size
b) A train
c) The coin which has more mass
2.
Ans-
c) There is a force on a the ball
opposing the motion (frictional force).
Mera bhi yahi answer hai
😅😅😅
sir you are the best teacher of physics
Thank You Soo Much Sir. You are best teacher. I UNDERSTAND ALL CONCEPTS VERY EASILY. 👍
Really Awesome explanation sir ...yu favourite❤
My physics is improved when I find this channel
1)stone b)train c)five rupees coin 2)there is a force on the ball opposing the motion(c)
1.a) stone
b) train
c)5 rupee coin
2)c
How it is 5 rupee coin
@@himanshak26 because it has more mass
@@a.b.c.gaming2.057 thanks friend
Homework.......
A) Stone B) Train C) 5rs coin (Concept of mass)( Inertia is proportional to mass)
2) There is a opposing force acting on the ball( gravitation).
Bro 2nd meh gravitation nhi friction seh woh ball rest pr aate hai
Frictional force will be applied not gravitational force