The main concept behind this is that sigma (power for internal forces) is zero. Power = T.v . Solve it by Sachin's method After that you will get v and if you differentiate wrt time u will get the acceleration..
it was an amazing technique.... thank u for being so generous and telling us this trick..... loved it ....hope we will get more such tricks from u in near future
sachin bhaiya, pls make a video on isomerism in coordination compounds. its always confuses me. i'm preparing for jee adv 2024 and i watch your oc lectures, they are just more than enough to solve msc and jee adv
Thank you so much bhaiya.... I had been struggling with these questions for like past 2-3 weeks and now all of a sudden they seem to be so easy that I am able to solve these in under 2 minutes.
Two cars A and B are moving towards each other on a straight road, with speed 50m/s and 100m/s respectively. A mosquito moving with constant speed of 150m/s, starts after biting driver of car S and moves towards driver of car B bites him and comes back of car A, bites him and again continues moving to and fro and biting them. Find distance travelled by mosquito till the cars collide, if the initial seperation between them is 1 KM .
Ye jugaad use krta hoon tests mein... Although conceptually normal relation se jaata hoon bhaiya. You are the only one whom I have found to use this trick... Except for the legendary Amit Gupta sir who taught me the same. Really appreciate your hardwork bhaiyaa. You are a real hero. 😊😊Thanks
OMG THANK YOU SO MUCH SIR! I have a very important physics exam tmrw and thanks to this video all my doubts are solved! You are a life saviour man! Keep up the good work. :D
Thank you bhaiya isne ekdam modd lift kar diya...sab jagah khoja kahi nahi mil rha tha tab ek dost ne aapna channel ka naam bola thank you so much ❤️❤️❤️
Sir just wanted to add something If the string is not roatating that means the string is not changing its position and is only going up and down on the pulley then you can use the formula £T.a but if the string is covering a distance say x in horizontal direction then this formula is not applicable then for acceleration you will have to differentiate the formula £T.v
Bhaiya I m grt fan and student of yours...my organic is getting better every day for u i am regular at Unacademy just want to say if u could plz tell us some more on physics it would be grt help the help u r providing is too much if u can plz thanks for being a such an humble and grt teacher !
Ugh, this is the virtual work method mentioned in Feynman lectures on physics. It doesn't work everywhere. Sometimes we have to use the constraint relations.
One question keeps bugging me. When u r attaching all the pullies to the wall then how are they gonna be in motion? The summation is 0 only because the the pullies aren't moving. The difference is done to get a result of DX/DT which is equal to 'v'. Let's say the main pulley has a velocity of 'v' or acceleration of 'a'. Then the result would be Length of the pulley string is always constant V(pulley)=(v1+v2)/2 a(pulley)=(a1+a2)/2
@ohyeah ohyeah dude the string is open from one end and you have to pull the string so that it causes some initial tension and then the blocks with the mass m can move
Thanks a lot! It works amazingly! But i would like to know 2 things: 1. Why does this technique work? 2. Is this technique universal? I mean can it be used in every possible situation? One more thing i noticed is that, even if some pulley system is not accelerating, but rather moves with a constant velocity, we can apply the same technique by doing Sigma T•V=0, and find the velocity relations.
Your method is really very helpful sir..especially as i didnt really understand the differentiation method..Please keep making unique videos like this....
Hello.. bhaiya i just want to ask that can u teach the differenent types of variations in young's double slit experiment ?? Like what happens when it is emerged in water or other cases like this ... Please make a video on it
If two bodies are attached to same pulley one moving upward another downward with same acceleration will T.a be considered for both masses or for one mass?? Pls reply sir
Please give such tricks through your videos on river man and rain man problems (mainly in inclined plane).. I and many of my friends too have problems regarding solving the questions based on this particular topic.. So, please.. Now, a days I got fear from those problems..
![Sachin Rana [IITB]](http://yt3.ggpht.com/uS6Xs0trlzd0ZG2wn6xRH_K8MfFD9ONT779F_nI36jb0vcCLseQgtFV9gOrRNCVu5Tc7VrMrZw=s48-c-k-c0x00ffffff-no-rj)
![How to write constraint equation for a pulley system - 1 [IITJEE]](http://i.ytimg.com/vi/uW55uR5LJbo/mqdefault.jpg)
![How to write constraint equation for a pulley system - 1 [IITJEE]](/img/tr.png)
Thank you for this video.I was facing difficulty in solving multiple pulley problems and this video cleared all my doubts.Thanks once again.
+SACHAN UTTKARSH welcome bro
+SACHAN UTTKARSH solve the ques in hcv today regarding this
Best JEE and PMT Preparation ok I will do it
thanku sir
Thank u so much bhayya
We were taught by the displacement.. the" x" , " y" method and I never got it right!
This is truly Amazing!
Thanks a lot!
GOSSHHHHHH, MAN, FINALLY I LEARNED THIS! THANKS (AND BLESS) FROM BRAZIL
@@adityatiwari8121 😂😂😂😂😂🤣🤣🤣🤣😅😆😆😆😆
No one complimented his hand writing 😍😍 love it
bestest video for constraint relations
The main concept behind this is that sigma (power for internal forces) is zero.
Power = T.v . Solve it by Sachin's method
After that you will get v and if you differentiate wrt time u will get the acceleration..
it was an amazing technique.... thank u for being so generous and telling us this trick..... loved it ....hope we will get more such tricks from u in near future
Creative approach! The world needs more of people who think like you.
sachin bhaiya, pls make a video on isomerism in coordination compounds. its always confuses me. i'm preparing for jee adv 2024 and i watch your oc lectures, they are just more than enough to solve msc and jee adv
Concept ache clear kar rahe ho... Upload more videos
FROM ALLEN KOTA REALLY 🔥🔥🔥🔥HELPFUL AS I ALWAYS USE TO GET CONFUSE IN THESE TYPES OF Questions🔥🔥🔥🔥🔥
Thank you so much bhaiya.... I had been struggling with these questions for like past 2-3 weeks and now all of a sudden they seem to be so easy that I am able to solve these in under 2 minutes.
I was taught my another method which never worked for me but this one really best and useful in question solving 👍👍👍
amazing bhai! complete clarity achieved in the concept!
+iL3G4CY thanx bro...
Two cars A and B are moving towards each other on a straight road, with speed 50m/s and 100m/s respectively. A mosquito moving with constant speed of 150m/s, starts after biting driver of car S and moves towards driver of car B bites him and comes back of car A, bites him and again continues moving to and fro and biting them. Find distance travelled by mosquito till the cars collide, if the initial seperation between them is 1 KM .
Nice video for whom who has not good concept .Thank you
Sir your method is best now my all problems are solving
Thank u so much for the video....U made the Pulley Problems sooooooooo easy..... Thank u so much...U r indeed the best
Bro ur awesome this trick Is truly amazing a problem which takes 5 mins to think and do using this it is taking just 30s
Great video sachin bhaiya.
It was very confusing to solve such problems eairliar but now with this trick it has become much easier to solve such questions.thanks sir
Bro ur method is great..
But can u explain how summation of T.a is 0.
Please
Net workdone by pulley = sigma t.s=0
Differentiate it twice for t.a
T v
Thank you very much bhaiya , I was having doubt in constraint relation and you cleared it very well. Thank you very very much.
Ye jugaad use krta hoon tests mein... Although conceptually normal relation se jaata hoon bhaiya. You are the only one whom I have found to use this trick... Except for the legendary Amit Gupta sir who taught me the same. Really appreciate your hardwork bhaiyaa. You are a real hero. 😊😊Thanks
Bro you saved our lives, God bless you
Your voice hit my mind so hard that even me can understand the concept so well 🙏🙏 thank you for continuous support
OMG THANK YOU SO MUCH SIR! I have a very important physics exam tmrw and thanks to this video all my doubts are solved! You are a life saviour man! Keep up the good work. :D
thank u bro
support from Tamil nadu
Thank you bhaiya isne ekdam modd lift kar diya...sab jagah khoja kahi nahi mil rha tha tab ek dost ne aapna channel ka naam bola thank you so much ❤️❤️❤️
You teach better than coaching teachers😀😉
U r the best teacher I have seen ..Soon u all achieve it dreams
Sir just wanted to add something
If the string is not roatating that means the string is not changing its position and is only going up and down on the pulley then you can use the formula £T.a but if the string is covering a distance say x in horizontal direction then this formula is not applicable then for acceleration you will have to differentiate the formula £T.v
It is internal work theorum.....
Yeah
Great bhaiya, it's so simple and easy.
How to solve problems where acc respective to string is given of a particular block. Please show by taking any of your example
very different method bhaiya...thanx for sharing
Bhaiya I m grt fan and student of yours...my organic is getting better every day for u i am regular at Unacademy just want to say if u could plz tell us some more on physics it would be grt help the help u r providing is too much if u can plz thanks for being a such an humble and grt teacher !
+Sabuj Maity my physics is not that good as you people think.
Sachin Rana - IIT Bombay Oh But really thanks for your help will be thankful forever
thanks bhai best explained trick until now...helped me a lot
Excellent trick sir.... Thank u for such a nice trick...👍👍👍👌👌👌
Works every time!!! Ty so much, saved my life in exam!!
Dear sir will you please give a trick on circuit problem ?
Thanks bro.. excellent trick .....very helpful ..if u can come up with a few more of them then u will be a mega star in the world of teaching
Was very good and helpful ....thanks
Bhaiya what a trick i was always facing difficuty in it but now it's just a cakewalk for me😊😊
it helped me a lot earlier i was soo confused with the old method but ths method is awsome...thnks sir...
Dada M1,m2. Direction uper ya niche kaise pata chalega
You r awesoe!!
I never knew these types of problems could be so easy
yes sir ... i had given upon string constraint until i saw your vid thankyou so much sir!
Ugh, this is the virtual work method mentioned in Feynman lectures on physics. It doesn't work everywhere. Sometimes we have to use the constraint relations.
It doesn't work when anglr between T and a is changing
@@vatsalgoyal4711 Are you sure? Also, are there any more cases where it doesn't work?
@@2mat012 yes 100% sure
is it applicable to variable tension with multiple pulley problems?
Where you have been all my life? What a trick?
Thank you soo much for such Gr8 trick!!!
What are those dislikes for...
So well done! 👍 ✅
U r the real saviour bro... previously I was really confused but after watching this video, I'm able to solve each and every question. Thanks a lot!
excellent job done bro....really helpful
Heck even writing the Lagrangian for the system wouldn't throw these relations that fast . Dope stuff mate , thanks
Really helpful! Hope you toppers keep helping us like this!😁
wont the tension be different??/because m1 is not equal to m2 right?
One question keeps bugging me.
When u r attaching all the pullies to the wall then how are they gonna be in motion?
The summation is 0 only because the the pullies aren't moving.
The difference is done to get a result of DX/DT which is equal to 'v'.
Let's say the main pulley has a velocity of 'v' or acceleration of 'a'. Then the result would be
Length of the pulley string is always constant
V(pulley)=(v1+v2)/2
a(pulley)=(a1+a2)/2
@ohyeah ohyeah dude the string is open from one end and you have to pull the string so that it causes some initial tension and then the blocks with the mass m can move
Thank you brother😄.... you made it easy to solve pulley problems.. I was struggling with them so far..
Really your experience, are very very help ful to us😊😊
Impressive..... fantastic..amazing...thaaank uuuuu sooo much
Beo itna acha to mere sir ne bhi anhi bataya tha.
You can do batter at this platform.
Congratulations for future 1m subs
awesome man cleared all my doubts....
Thanks a lot! It works amazingly! But i would like to know 2 things:
1. Why does this technique work?
2. Is this technique universal? I mean can it be used in every possible situation?
One more thing i noticed is that, even if some pulley system is not accelerating, but rather moves with a constant velocity, we can apply the same technique by doing Sigma T•V=0, and find the velocity relations.
I m getting wrong signs in answer,. Can you tell me why .....assuming i have not done any calculation error
Good.
This method is also used by Byjus
But now I get clear explanation.
Please do a video of using this in case of a non inertial frame as well.
Your method is really very helpful sir..especially as i didnt really understand the differentiation method..Please keep making unique videos like this....
Sir...Does this method express the direction of acceleration in its relation because the last sum solved involves direction in its relation?
Thank you sir your trick is really very useful, But will it work for all constrain motion problems?
Thank you sooo much!! Our teacher had explained us about this method but it didn't fit in too well, but you explained really well thanks!!
Welcome.
Sir vo bahut sari pully vala question bahut kam sir karate hai I see you and one another is only utkarsh classes saurabh sir best work love you
Nice. Thanks a lot 😊😊
IT IS VERY HELPFUL AND USEFUL
Thanks a ton brother!!😊😊 Able to solve now.
Very much thankful to you love this trick
How to find if velocity of block a is given and asking us to find velocity of block b?
Bahut bahut dhanywad bahiya
You explained so nice that all complex pully problems had become easy
Thanks for the video
Hello.. bhaiya i just want to ask that can u teach the differenent types of variations in young's double slit experiment ?? Like what happens when it is emerged in water or other cases like this ... Please make a video on it
Thanks sir it's very useful 👍👍👍👌👌👌
If two bodies are attached to same pulley one moving upward another downward with same acceleration will T.a be considered for both masses or for one mass?? Pls reply sir
Vry good explanation sir..thnks alot..
Thank you very much! It just works like magic!
Please give such tricks through your videos on river man and rain man problems (mainly in inclined plane).. I and many of my friends too have problems regarding solving the questions based on this particular topic.. So, please.. Now, a days I got fear from those problems..
thanx bro i really need this trick
Please make more trick videos which will be useful in IIT Jee exam.
I think this is called the principle of virtual work. Somebody clarify..... Amazing videos. Thanks!
Same can be done by displacement i.e., £T.x=0 internal work done by the string is ZERO
Sir thanks..... Your trick was very useful you are my inspiration IIT Bombay 😇😇😇
thankuuuuuuuuu so much .I was facing a lot of problem in this concept.👍👍☺
Very nice explanation..!!
Thanks a lot bhaiya ji that you have given some important trick
Thanku sachin bahi really helpful.🖒🖒🖒
Can you please say why you are applying (t.a) is equal to 0
YOUR VIDEO ON WAS TOTALLY AMAZING .NOW ALL MY DOUBTS ARE CLEARED .SIR PLZ ULSO UPLOAD CONSTRAIN IN SPRING.IT WOULD BE VERY HELPFUL
+Chirag Bhutada thanks.
I have the proff of it which comes from work power energy -as work done by net tension in a system is zero and on diff them. We get your method,,,,
Sir I just wanted to ask that this method applicable in what condition?????
Can you show in case of force added to block..
Please give a reply fast....