📝Download Lecture Notes From PhysicsWallah App : bit.ly/2SHIPW6 🎯 Science group- t.me/joinchat/RYszj_1cAl8xEvnv 🎯 Social Science- t.me/joinchat/GCBE5bDgFdxrZeI8 🎯 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 January 4,2021- February 15,2021 3) Monday - Saturday : Scheduled Classes everyday. •Physics : Tuesday, Saturday •Chemistry : Wednesday , Friday •Mathematics : Monday, Wednesday, Friday •Biology : Wednesday , Thursday , Saturday •S.ST : Tuesday, Thursday, Saturday, Sunday 4) Scheduled Syllabus released describing which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 ----------------------------------------------------------------------------- OUR SOCIAL MEDIA PROFILES : ⭐Instagram Handle : instagram.com/physicswallah/ ⭐Facebook Page: facebook.com/physicswallah ⭐Twitter Account : twitter.com/PhysicswallahAP?s=20 ⭐ PW App on Google Play Store : bit.ly/2SHIPW6 ❤️ Padhai Karte Rahe, All The Very Best 👍
I am watching your lecture for competitive exams. And it is helping me a lot to build solid concepts which I missed in my school days. Thanks a lot sir for this wonderful effort☺️
Challenger questions: 1) The weight will vary as the distance at poles > distance at equator. Hence, it will be less than that at the pole. 2) (A) zero Amazing lecture❤!
RAKSHAK SIR AAPKE CONCEPTS BHT JALDI SAMJH AATE HAI AUR YOUR TEACHING IS GOD LEVEL CUZ U TEACH US IN A FUN WAY AND I LIKE IT VERY MUCH U R THE BEST TEACHER
Challenger question 1)The friend will not agree with the weight of the gold as because the force will become less at the equator because of the distance is more than the distance in poles so the g will become less as they are inversly proportional and if the g become less then the mass will also become less because they are directly proportional 2) a)0 because the at the centre of the earth the r will be very small almost negligible/0 so if the distance is 0 then the g will also 0 if g is o then the mass is also 0 because of direct and inverse relation
Physics vs maths menti !! Most wished Answers 1. If his friend has studied class 9th then he would not agree because amit is making him fool by buying at pole and selling at equator as g in high in poles making weight also high ! 2. g= GM/R2 Since R=0 hence it is undefined! But zero hoga kyunki undefined option mea nhi hai
@@shauryapallav5674 if you think it from mathematical perspective then its undefined. But if you look conceptually then it is 0 coz , imagine there is a spherical object at centre of earth, this means that their centre coincides ( both of object and earth ) so there will be net 0 force of gravity as objects are already in contact
@@rajanshukla2512 no undefined and infinite are two different concepts . Undefined means : there is no definition for the answer While infinity means the number is so big that it never ends .
Nidhi yaar tum bhi kuch bolo, pehle bhi tumhaari ek comment par do ladke bol rahe the, say something na, aise to.... Chalo chodo, keep it up & keep learning, ✌️✌️
Sir i want teacher just like you in my school..thank you very much for this helpful lecture this will improve my study..as i am topper of previous class but i see physics very hard thank you sir...🙏💞it's being a lot for me..
I HAVE BEEN SEEING TOO MANY MASTER TEACHER ........BUT.....AS LIKE U ...A... UNIVERSE BI NAHI HOTA .....HATS OFF........MASTER GI .....HATS OFF ......VAHH....AHH ..NO WORDS WORD TO PRAISE YOU ....🤐............................. COUNTINUE WITH UR GOOD TEACHING.....NEVER STOP.....IT IS VERY USEFUL FOR MANY CHILDREN.......AND ...NEVER STOP CREATING .....A HISTORY.......TQ ......
Q.1 yes the weight will differ because on the pole the radius from the centre of the earth is less so the ACC due to gravity will be more so the weight will be more similarly weight at the equator will be less
Sir you r a mentor for us...the way uu explain us all the concepts is just simply phenomenon....I was unable to understand anything in my school....coz the teacher was running the chapter quite fast...but when I watched ur videos i'm able to understand every concept...❤️glad to get lessons from such a inspirational teacher
Challenger Question 1. No , the Amit's friend will not agree because at the equator the weight of gold will be less than on poles. Because g is inversely proportional to the distance and at equator the radius i s bigge r than on poles. Q2. (A) Zero
19:56 Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance.
You know guys why i am writing this comment because I have been seeing his videos from last 6 days and I am a very agressive kid but when is see his video a unknown smile 😊 always come to my face. Good working sir.
Answers of HOTS Challengers questions: 1) weight is m*g and g decreases at the equator as g is inversely proportional to the square of radius of earth(r2). So, his friend will not agree as he is given less gold in terms of weight. 2) Zero; As g becomes zero at the centre of earth . w=m*g=m*0=0 WONDERFUL EXPLANATION !!!!
@@AkashSingh-lj7ow mera matlab tha first equation se hai that is the the law of gravitation..........GM1m2/r^2..........ISME joh chota "m" hai na usme mass dependent hota hai aur second equation joh acceleration due to gravity hai........GM/r^2 USME chota mass dependent nahi hota
chote mass ko neglect kiya jata hai kyunki voh bohot choti hai as compared to bada g...............lekin law of gravitation ke formulae mei chote g ko neglect nahi kiya jata kyunki voh chota g ki value hi planets ki hoti hai.......😂😂agar usko neglect kar diya to gaye.........aur acceleration due to gravity mai chota g ki value bohot kam hoti hai......jaise 1 kg ya 200 kg....yeh kuch bhi nahi hote planets ke samne( ya bade G ke samne)
Sir aap pls vidhyapeeth moradabad mei aa jao No one can beat you in physics You have made physics my favorite subject And only because of you I literally explain physics in my class to all my friends
Tommorow is my halfyealy exm and I did not even touch this chapter in my book but this sir explains very well ,earlier I was having difficulties for numerical but this sir explained very well in the previous video, thank you sir
Hots challengers: 1. The weight will be different as g at pole > g at equator . So the weight will increase at equator , he'd be fooling his friend by doing so . 2. (a) zero Amazing lecture !
FUNFACT :-- Sir ki maths itne jayda aachi hai ki jo 9.8 (value of g ) hamne adhe ghante me nikali usko sir ne aakh band kar ke hi nikal ke likh di 😱😱🤨🤨🤣🤣
sir if by chance there were only earth and moon in this world and then if we take moon a lakh km away from earth and a feather which is at same distance from starting/tip point so which will fall first according to me moon as the gravitation of moon will even attract itself toward earth (weight of moon is 6*10 ki power 23*9.9)
Sir ,yeh mere papa ne bataya tha bas extra knowledge hai : Since scientists already know the radius of planet Earth, they used the Law of Universal Gravitation to determine Earth's mass with respect to the gravitational force on an object on the Earth's surface. Simply put, this method uses Earth's radius as the distance.
Rakshak sir you are the best physics teacher I have ever seen. Thank you very much for clearing my concepts. I had became mad before learning from you, for me it was very hard to understand physics but you made it easy.
HOTS Challengers:- 1.ans= Amit's friend will not agree with the weight of gold bought. Becuase the weight of gold at equator becomes less than the weight at poles. Because the distance between poles and centre of earth is less, So the force (weight) becomes high as compare to the weight at equator. Becuase the distance between eqator and the centre of earth is higher than the distance between poles and centre of earth, So that's why weight is less at the equator. 2.ans= infinity, because according to the equation F=GM1M2/r square. So if "r" is smaller so F is larger and force means Weight.
2nsThe weight of a body at the centre of earth is zero because value of g is zero. As we move a body closer to the centre of the earth, the mass of the earth between the centre of the earth and the body keeps decreasing. This causes the force acting from the centre of the earth on the body to decrease.
This was my first youtube lecture of physics wallah foundation and I love it. Thank you sir for making this amazing video and make us understand this concept.
3:26 Sir gravity ki direction towards the center of any object hoti h , downward nhi ................for eg- ek object h earth ke equator ke pass atmosphere me to vo niche nhi jayega,vo earth ke center me jayega
@@rudradhandare3138 but if the object is on the right side then it will attract towards the earth means it's center not downward but the thing you are saying is only for that particular object not for every object that exists
22:28 sir jo surface area hota hai vo go force ke inversely proportional hota hai jaise ki knife mai hota hai to sir sheet of paper ka area jyada hai yo kam lgna chahiye na force jyada kyo lg rha hai If anyone knows the reason so plz answer or sir if you can answer Challenger 1.. weight varies from place to place as it is directly proportional to g and g also varies from place to place so the friend of amit will not agree by weight of gold 2. Zero
HOTS 1. no; because the distance from the center of the earth is more at the equator and is less at the poles does the gravitational force is more at the poles than the equator and thus the weight of the gold bar is more at the polls and less at the equator 2. (a) zero
Jo log bhi dislike karte hein na unhe physics ki feel nahi hai....Jo log Alakh sir ko pehele se follow karte aa rahe, unhone hi iss channel ko banaya hai....Alakh sir sahi kahate hein ki "Aap hein to hum hein" lekin Alakh sir, hum bacche kahana chahte hein ki "Aap hein to hum hein"
Sir ka T-shirt!!🤣OP!🔥 Challenger questions ke answer: 1. No because the weight of the gold at the equator will decrease because of radius of the Earth is greater at the Equator than the poles. 2. a) 0
Ans 1 - Since weight = mass * acceleration due to gravity And value of g is greater at poles because earth has not perfect shape of sphere so it is flat on poles and big on equator. Since g is inversely proportional to radius of earth. Therefore value of g is greater on poles as compared to equator. That is the reason why weight of gold is greater on poles and less on gold.
Gravity is the gravitational force exerted by earth. But Gravitational force doesn't necessarily have to be that of earth. It can be exerted by any object on any other object.
The acceleration due to gravity is same on both the objects because 'g' doesn't depends on the mass on the masses or radius of the two objects. Instead it depends on the mass and radius of earth only. Hence, the acceleration due to gravity is same on both the objects.
1=no amit's friend will not agree with him because the wieght of gold becomes less on the poles as the earth is not a perfect sphere its gravity is always varying and gravity is directly propotional to mass of planet
Sir aapne kaha ki object light ho ya heavy (g) is constant for both by earth, it depends on air resistance then agar wo mass pe depend nahi karta to earth hame attract kyu karti hai jab mass ka koi role nahi hai sirf air resistance hai.
use high speed camera .. and pan and fall with a measured object and measure the spped and acceleration at ""all spots along the drop and bounce curve of a stationary, and a moving fall upon object
Gravity is the force of the earth with which it attracts another objects, while as Gravitational force is the force that is present between two bodies.
The weight of a body is given by: W = mg where, m = Mass of the body g = Acceleration due to gravity at that place The value of g is greater at poles as compared to the equator. Therefore, gold will weigh less at the equator and Amit's friend will not agree with the weight of gold bought.
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🗓️ Scheduled Syllabus For Sprint ( Class 9th ) released describing which topics will be taught for how many days.
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Sir i am not able to message in telegram group it is showing message isn't allowed in this group why the group is showing this?
Aur gu kha dir
Sir i can't find 9th class material on app nor 10th class
Sir i understood this whole chapter in just 4-5 hrs 😅😅but ur explaination was amazing 😼😼😼
Sir hathi ko chhat pr le kaise jaoge 😂😂😂
Best teacher of physics in foundation level.respect for you no one teach like you
👍
@@mahithns7785 🤡
Khao
@@mahithns7785 hahhahahah
@@mahithns7785 are you 5?
Comebacks or replies like "potty khao" are used by kindergarteners 😂
Rakshak sir is doing our raksha from physics 😅😂😂😂
😂😂😂😂
Hiiiiiiii🙋🙋🙋🙋🙋🙋
True
Ji Yakdam
True
Literally, physics wallah have the taste of teaching 🙂🙂
@A k s h i t a my name is akshat
@A k s h i t a 😂😂
Sahi bola
@A k s h i t a 😂
AkSHIT(💩)a
yes bro
Ha bhai tune taste karke dakha ha na...🤨🤨
The day when I found this channel randomely
This is the luckiest day in my life ☺️☺️☺️☺️☺️
Me too..... & from then I started learning all unclear conpect from their 😌...im so humble
Me too
Me to
Me 5
they teach english too, try learning spellings too pls
Radhe Radhe ❤❤
I am watching your lecture for competitive exams. And it is helping me a lot to build solid concepts which I missed in my school days. Thanks a lot sir for this wonderful effort☺️
which exam are you giving?
@@Catsarebetterthandogs0246 railway
Same
Giving Talentex
@@AdityaSharma-gt7lr what is your national rank?? And class
Challenger questions:
1) The weight will vary as the distance at poles > distance at equator. Hence, it will be less than that at the pole.
2) (A) zero
Amazing lecture❤!
👌
"Im not fat i just live on the wrong side of the planet"
Underrated comment
😂😂😂
Yep😂
That was intresting 😂
That was intresting 😂
RAKSHAK SIR AAPKE CONCEPTS BHT JALDI SAMJH AATE HAI AUR YOUR TEACHING IS GOD LEVEL CUZ U TEACH US IN A FUN WAY AND I LIKE IT VERY MUCH U R THE BEST TEACHER
👌👌👌👌👌
Challenger question
1)The friend will not agree with the weight of the gold as because the force will become less at the equator because of the distance is more than the distance in poles so the g will become less as they are inversly proportional and if the g become less then the mass will also become less because they are directly proportional
2) a)0 because the at the centre of the earth the r will be very small almost negligible/0 so if the distance is 0 then the g will also 0 if g is o then the mass is also 0 because of direct and inverse relation
Physics vs maths menti !! Most wished
Answers
1. If his friend has studied class 9th then he would not agree because amit is making him fool by buying at pole and selling at equator as g in high in poles making weight also high !
2. g= GM/R2
Since R=0 hence it is undefined! But zero hoga kyunki undefined option mea nhi hai
I think it will be infinty
@@shauryapallav5674 if you think it from mathematical perspective then its undefined. But if you look conceptually then it is 0 coz , imagine there is a spherical object at centre of earth, this means that their centre coincides ( both of object and earth ) so there will be net 0 force of gravity as objects are already in contact
@@anonymous-sm6sh hmm mathematically it may be infinity but physically it is undefined you are saying right
Bhai Infinite and undefined are almost same !!!! So 2 ka 0 nahi ; infinte hoga
@@rajanshukla2512 no undefined and infinite are two different concepts .
Undefined means : there is no definition for the answer
While infinity means the number is so big that it never ends .
19:56 sir with the help of universal law of gravitation because we know the radius of earth 🌍...
Yes
13:41
Instead of dividing, much easier method would be:
We know:
g= GM/r²
Then:
g' = GM/2(2r)²
g' = GM/8r²
g'= ⅛(GM/r²)
g' = ⅛(g)
Hlo
Correct answer
Phir khud pada lo 🙂
They have to make us understand the concept, that's why they teach like that
Mine mind was distracting by the animation of falling apple on Newton s head 😂
very nice lecture and it helped me alot to learn this topic
Curious for Johannes kepler's laws of planetary motion next to us 👍🏻👍🏻
Mustt ho number dogi..
Hmm
@@AnandYadav-iw9vd bro, tameez please 🙄🙄🙄 like are ya serious?
Nidhi yaar tum bhi kuch bolo, pehle bhi tumhaari ek comment par do ladke bol rahe the, say something na, aise to.... Chalo chodo, keep it up & keep learning, ✌️✌️
@Asif flirt 100
Study 100
Pradeep 100
Sir i want teacher just like you in my school..thank you very much for this helpful lecture this will improve my study..as i am topper of previous class but i see physics very hard thank you sir...🙏💞it's being a lot for me..
Olympiad lvl question of acc.due to gravity.
question 1- ......
Answer-1.20m/s²
I HAVE BEEN SEEING TOO MANY MASTER TEACHER ........BUT.....AS LIKE U ...A... UNIVERSE BI NAHI HOTA .....HATS OFF........MASTER GI .....HATS OFF ......VAHH....AHH ..NO WORDS WORD TO PRAISE YOU ....🤐............................. COUNTINUE WITH UR GOOD TEACHING.....NEVER STOP.....IT IS VERY USEFUL FOR MANY CHILDREN.......AND ...NEVER STOP CREATING .....A HISTORY.......TQ ......
u r right bro
Teacher like you is very few in the world you are not like our school teacher 😉
Q.1 yes the weight will differ because on the pole the radius from the centre of the earth is less so the ACC due to gravity will be more so the weight will be more similarly weight at the equator will be less
@@ehsanahmad4683 Q.2 (a)
Pls explain me what the acc due to gravity and by giving an example
What u mean by acc
ACC means acceleration
@@smartboy8473 it is the acceleration by the gravitational force of earth
Sir you r a mentor for us...the way uu explain us all the concepts is just simply phenomenon....I was unable to understand anything in my school....coz the teacher was running the chapter quite fast...but when I watched ur videos i'm able to understand every concept...❤️glad to get lessons from such a inspirational teacher
गुरुजी आप क़तई ज़हर पड़ाते हो
😱😱😱😱😱💞💞💞💞💞sahi me bhai
सही बोले एकदम भाई
MATLAB 😅
Are Bhai bilkul shi
Guruji you do poison
Challenger Question
1. No , the Amit's friend will not agree because at the equator the weight of gold will be less than on poles. Because g is inversely proportional to the distance and at equator the radius i s bigge r than on poles.
Q2. (A) Zero
Its wrong when we divide by 0 then ans is not define
@@tarunbora4501 No its right why to divide by 0?
W=mg so.... So g will be 0 according to question so product will also be 0.. Hence weight will be 0
@@a.lfitnessgames7878 ok explain why g is 0
@@tarunbora4501 In class 9 we have to know only that g=0,its explanation is in class 11....
If sir is reading this plzz explain this in next session...
Great Teaching Skill....
GOD BLESS YOU SIR////
SALUTE FROM HEART
19:56
Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance.
itni hardwork
You know guys why i am writing this comment because I have been seeing his videos from last 6 days and I am a very agressive kid but when is see his video a unknown smile 😊 always come to my face.
Good working sir.
Answers of HOTS Challengers questions:
1) weight is m*g and g decreases at the equator as g is inversely proportional to the square of radius of earth(r2).
So, his friend will not agree as he is given less gold in terms of weight.
2) Zero; As g becomes zero at the centre of earth . w=m*g=m*0=0
WONDERFUL EXPLANATION !!!!
17:50 It can also be said that value of g does not depend on mass of object
@@AkashSingh-lj7ow mass pe nahi hoti hai...........mass constant hoti hai
@@AkashSingh-lj7ow mera matlab tha first equation se hai that is the the law of gravitation..........GM1m2/r^2..........ISME joh chota "m" hai na usme mass dependent hota hai aur second equation joh acceleration due to gravity hai........GM/r^2 USME chota mass dependent nahi hota
lecture ko 5:00 se 10:00 tak fir se dekh( from 5th minute to 10th minute)
@@AkashSingh-lj7ow galti se bada G bol diya tha........🙄🙄 asal mei mai law of gravitaion ki baat kar rah tha......
chote mass ko neglect kiya jata hai kyunki voh bohot choti hai as compared to bada g...............lekin law of gravitation ke formulae mei chote g ko neglect nahi kiya jata kyunki voh chota g ki value hi planets ki hoti hai.......😂😂agar usko neglect kar diya to gaye.........aur acceleration due to gravity mai chota g ki value bohot kam hoti hai......jaise 1 kg ya 200 kg....yeh kuch bhi nahi hote planets ke samne( ya bade G ke samne)
Sir aap pls vidhyapeeth moradabad mei aa jao
No one can beat you in physics
You have made physics my favorite subject
And only because of you I literally explain physics in my class to all my friends
G :- Universal Law Of Gravitation
g :- Acceleration Due To Gravity...
Wrong
I would like to correct you, G doesn't mean universal 'law' of gravitation but universal gravitation 'constant'
@@stefotsufurema13 yeah. I got that mistake. Thanks
19:42 Sir 's voice was same like kapil Sharna 🙄🔥🔥💯💯🔥
Tommorow is my halfyealy exm and I did not even touch this chapter in my book but this sir explains very well ,earlier I was having difficulties for numerical but this sir explained very well in the previous video, thank you sir
Hots challengers:
1. The weight will be different as g at pole > g at equator . So the weight will increase at equator , he'd be fooling his friend by doing so .
2. (a) zero
Amazing lecture !
FUNFACT :-- Sir ki maths itne jayda aachi hai ki jo 9.8 (value of g ) hamne adhe ghante me nikali usko sir ne aakh band kar ke hi nikal ke likh di 😱😱🤨🤨🤣🤣
sir ko phele see pta hai ree dont worry you everyone is good in everything : )
Qn.1 -> No, because g varies at poles than on equator and due to variation in g...weight also also changes...
Qn.2:-> Zero
Using Cavendish experiment OR
following the law of gravitational forces we can roughly find out the mass of earth..(not weight)
Sir space main tarazu lekar gaye honge scientist 🤣🤣🤣🤣🤣
Nyc joke😄😁
😂😂😂😂😂😂😂
sir if by chance there were only earth and moon in this world and then if we take moon a lakh km away from earth and a feather which is at same distance from starting/tip point so which will fall first according to me moon as the gravitation of moon will even attract itself toward earth (weight of moon is 6*10 ki power 23*9.9)
# legend😎
Sir ,yeh mere papa ne bataya tha bas extra knowledge hai :
Since scientists already know the radius of planet Earth, they used the Law of Universal Gravitation to determine Earth's mass with respect to the gravitational force on an object on the Earth's surface. Simply put, this method uses Earth's radius as the distance.
😮😊
You are in 9nt
Donald Trump's example was explicitly amazing😂🤣👌
Yes bro 😂😂
The measuring of mass of earth by instrument portable gravimeter
23 :00 min Air resistance (Friction)which depends on Surface area that's why the piece of papaer takes a long time.
Then , the surface area of 🐘is also more than 🐀....
@@arushishahade5537 but mass of 🐘 more than mass of 🐀
Rakshak sir you are the best physics teacher I have ever seen. Thank you very much for clearing my concepts. I had became mad before learning from you, for me it was very hard to understand physics but you made it easy.
Hello sir I am extremely flattered to your way of teaching
The mass of earth was discovered using the universal gravitational constant and earths radius
that was used at its distance that is F=GM1M2?R^2
On 10:03 you said bigger the planet lesser it would be the gravity which is absolutely confusing🤔🤔🤔
HOTS Challengers:-
1.ans= Amit's friend will not agree with the weight of gold bought. Becuase the weight of gold at equator becomes less than the weight at poles. Because the distance between poles and centre of earth is less, So the force (weight) becomes high as compare to the weight at equator. Becuase the distance between eqator and the centre of earth is higher than the distance between poles and centre of earth, So that's why weight is less at the equator.
2.ans= infinity, because according to the equation F=GM1M2/r square. So if "r" is smaller so F is larger and force means Weight.
2nsThe weight of a body at the centre of earth is zero because value of g is zero. As we move a body closer to the centre of the earth, the mass of the earth between the centre of the earth and the body keeps decreasing. This causes the force acting from the centre of the earth on the body to decrease.
By the help of trigonometry parylx we find redius of earth.
Sir jee
It's Trignometric Parallax
What is meant by trigonometry parallax
This was my first youtube lecture of physics wallah foundation and I love it. Thank you sir for making this amazing video and make us understand this concept.
Question 1 : The friend will not agree as the value of g is less at the equator therefore weight will be also less.
Question 2 : (a) zero
Thanks sir you are the best physics teacher ....
the mass of earth is measured indirectly by determining other quantities such as earth's density , gravity , or gravitation constant
3:26 Sir gravity ki direction towards the center of any object hoti h , downward nhi ................for eg- ek object h earth ke equator ke pass atmosphere me to vo niche nhi jayega,vo earth ke center me jayega
yes sir point h
the direction will be toward the earth which is downwards respective to the object
@@rudradhandare3138 but if the object is on the right side then it will attract towards the earth means it's center not downward
but the thing you are saying is only for that particular object not for every object that exists
22:28 sir jo surface area hota hai vo go force ke inversely proportional hota hai jaise ki knife mai hota hai to sir sheet of paper ka area jyada hai yo kam lgna chahiye na force jyada kyo lg rha hai
If anyone knows the reason so plz answer or sir if you can answer
Challenger
1.. weight varies from place to place as it is directly proportional to g and g also varies from place to place so the friend of amit will not agree by weight of gold
2. Zero
Here we are talking about air resistance!!
Bro metal is dense....
Surface area and pressure are inversely proportional not the force
HOTS
1. no; because the distance from the center of the earth is more at the equator and is less at the poles does the gravitational force is more at the poles than the equator and thus the weight of the gold bar is more at the polls and less at the equator
2. (a) zero
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Challenger questions ke answer:
1. No because the weight of the gold at the equator will decrease because of radius of the Earth is greater at the Equator than the poles.
2. a) 0
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Ans 1 - Since weight = mass * acceleration due to gravity
And value of g is greater at poles because earth has not perfect shape of sphere so it is flat on poles and big on equator. Since g is inversely proportional to radius of earth. Therefore value of g is greater on poles as compared to equator. That is the reason why weight of gold is greater on poles and less on gold.
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Sir, you are the best teacher of physics
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Sir sabhi object jo earth par hai uspar 'g' or gravitational force dono lagega
Suno g deakho g aab niklega chota g🙂
sir from Pakistan
sir mass of earth is calculated by Fg=G Mo Me/(Re) square
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Sir is there any difference between gravity of earth as radius of earth at equator is more than radius of earth at poles
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What an aamazing explanation ❤
16.46 question answer
May be due to the force that's acting on paper ball and a paper because the force become more when u make paper to ball....
sir what is difference between the gravitational force and gravity??
If the force upon acted on earth or force exerted by earth on any other object is called gravity
If force is acted upon any other body except earth is called gravitational force
Gravity is the gravitational force exerted by earth. But Gravitational force doesn't necessarily have to be that of earth. It can be exerted by any object on any other object.
Gravitation is used for whole universe
And Gravity is used for Earth
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28:19 sir lekin G ke paas bhi to direction hai na kyuki usme Newton bhi hai jisme acceleration hoti hai aur acceleration ke paas direction hota hai
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The acceleration due to gravity is same on both the objects because 'g' doesn't depends on the mass on the masses or radius of the two objects. Instead it depends on the mass and radius of earth only. Hence, the acceleration due to gravity is same on both the objects.
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@Amblo Anklo kon hai tu
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Sir I am fan of your teaching
1=no amit's friend will not agree with him because the wieght of gold becomes less on the poles as the earth is not a perfect sphere its gravity is always varying and gravity is directly propotional to mass of planet
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Sir aapne kaha ki object light ho ya heavy (g) is constant for both by earth, it depends on air resistance then agar wo mass pe depend nahi karta to earth hame attract kyu karti hai jab mass ka koi role nahi hai sirf air resistance hai.
Sir hume physics ke sath sath geo maths sare sub padha dete hai
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nice
use high speed camera .. and pan and fall with a measured object and measure the spped and acceleration at ""all spots along the drop and bounce curve of a stationary, and a moving fall upon object
Sir what is difference between gravity and gravitational force ???
Gravity is the force of the earth with which it attracts another objects, while as Gravitational force is the force that is present between two bodies.
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The weight of a body is given by:
W = mg
where, m = Mass of the body
g = Acceleration due to gravity at that place
The value of g is greater at poles as compared to the equator. Therefore, gold will weigh less at the equator and Amit's friend will not agree with the weight of gold bought.
Challenger question :
1. No his friend will not agree because mass may varry.
2. Zero
22:29 reason not air it is when the surface area of an object is large so the force acting low as the surface area is small the force act more
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But magnetic 🧲 brain is ALS good
"26:40" difference between G and g
Great teaching sir Thank you 👌😊☺️