2 Block Problems | Friction | JEE Physics | Mohit Sir (IIT KGP) | IIT JEE

Two Block problems in Friction is discussed in detail in this video by Mohir Sir. These problems are asked in JEE Main and JEE Advanced exams.
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#Friction #2BlockSystem #PhDSeries #Eduniti #JEEMain #IITJEE #JEEAdvanced
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[@mohitgoenka99]

🔥 *PHD SERIES PLAYLIST* - bit.ly/3cQSxPT 👀 Links - MUST WATCH!! 👀 🚀 Master PDF File for Physics PYQs and Concept Videos - bit.ly/2ZKb5Of 🔥 GOLD Mine Link - bit.ly/2VhOGFF

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Gold mine or master pdf me difference kya h?

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@@parthsarathidixit5648 Master PDF is just for PYQs (JEE Main) and Concept videos but GoldMine is overall channel educational content

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Sir Three Block systems Or more than that With Graphs

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In your previous videos I just commented you to make a video on two block problems and you made it so quickly sir. Thank you so much. your efforts are highly appreciated.

[@mohitgoenka99]

You are most welcome

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Sir rotation ka revision lec bana do

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legends never comment in any educational platform. they just study, like, subscribe and giving millions and billions of love and thanks from their heart....❤

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

[@zero0bb]

​@@samairamalik3404No, gravitational force acts downwards. To understand normal force imagine you are pushing a wall, the force you give while pushing a wall is defined, we can call it F(human) signifying a human is giving a pushing force. But, the wall will not move, why? because of a multitude of factors and forces, there are too many to take into account but we know that the normal force always manages to equate the force we give on the wall. That is what normal force is, when a rigid body is immovable a normal force is said to act opposite to it. Hope i helped

[@samairamalik3404]

@@zero0bb you did help!! thanks

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You are not a legend then.

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​@@zero0bbLol,that's wrong.

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I am dropper student ... I hate physics since I started preparing for jee ... And I advanced physics ke kaaran hi mera selection nhi ho paya and abhi bhi muje physics itni pasand nhi thi bas jabarjasti karta tha par abhi 1 mahine pehele aapka channel Mila and u made it very easy and I started loving physics and I am now top scorer in physics in my mocks .. thank you so much sir ❤❤❤..love u sir

[@bluntchar]

I missed the lecture of two block friction in my coaching centre and was struggling until through his past students I came to know about him, extremely grateful for the work he is doing for JEE aspirants. Explanantion was good and now I have some confidence to go through module questions and DPP's.

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[@mohitgoenka99]

Thanx for lovely comment dear.

[@theeditor-ams3608]

Again , aaj topic ko revise kiya , aaj phir bolunga iss topic pe isssse achha video kisi ne banaya nahi hai .. Thank you so much sir ❤

[@mohitgoenka99]

most welcome dear keep learning

[@drafercuber-shorts8127]

This 2 block system is my favorite because my teacher didnt teach us this concept but some how after fighting 1hr i learned this concept by my own

[@mohitgoenka99]

Great Dear

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change your teacher bro

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Same here bro

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My teacher made this concept so tough like it was something out of this planet 😞😭 😭😑😑😑 then i xame here and sir you made it soo simple to understand and made us feel the concept ❤❤❤❤❤❤❤ thank you sir ... # learn like never before is so true 😉

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Awesome sir great explanation, i found second approch of these questions and now i feel more confident on this topic. Great Content and great efforts sir.

[@mohitgoenka99]

Glad to hear that

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You made this concept crystal clear to me. One of the best Physics teacher i have ever found....👍

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Glad to hear that

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Got 95 marks in jan attempt... Now targeting for 100 marks in April ❤❤ Thank you so much sir 🙏

[@mohitgoenka99]

excellent dear wish you best

[@anjangamming6943]

Just 1.25 question more (5 marks)😅

[@abhinavtripathi6764]

@@anjangamming6943which shift ?

[@anjangamming6943]

@@abhinavtripathi6764 27 ||

[@VartikaSingh-wu6oz]

​@@anjangamming6943probably he attempted all and did one ques worng

[@aspirant_IIT-KGP]

Note for my future reference - First step, second step for friction ques uk We have 2 categories Jaha F neeche Wale par lage Jaha F upar Wale par lage For no. 1 F max corresponds to f limiting for upar wala Final step me F = m sys (a max) [that chotu upar wala box can tolerate) When F exceeds F max neeche wala aur upar wale ka FBD alg-alg banake solve Karo! Ese me koi confusion hoga hi ni! Ki neeche Wale box ki final Force ea me m sys hoga ki m box etc etc For no. 2 F max corresponds to f limiting of lower box Here don't u dare forget ki f static is self adjusting so acc to values in ques they can ask F min and F max both!.. F max corresponds to f limiting F min corresponds to f kinetic (for lower box) Baki all well!..😁👍

[@aspirant4287]

thanks buddy these takeaways are helpful

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Ur written statement helped ❤️

[@arjitsinghgrover7935]

good

[@lnewf2331]

Never understood two block system in 11th now in 12th finally understanding it Thanks sirr...🙏🙏

[@poojanjain6069]

Am I the only one who, first likes the video then watch it🤗 (Edit-bring more videos of concept which are being repeated)

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I dont know whether it will come to neet But I will definitely say this is the BESTEST video about 2 block problems... on YT just wow!!

[@mohitgoenka99]

lovely dear

[@BLINK-xw3do]

always has doubt in when it will move together and when not and the way you explained is absolutely incredible I got it all thankyou so much

[@fompypompyy535]

Thank you for uploading this video sir.. was looking forward to your mechanics concepts 😁

[@mohitgoenka99]

Most welcome 😊

[@luckypathak6830]

Sir from the bottom of my heart I literally say thank you for clearing this concept as it scratched my head to understand. But now I understood the approach to solve such problems only because of you 🙏🙏🙏 thank you so much sir, ❤🙏🙏🙏

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Thanku sir just bcz of u i got 97 percentile in physics 🙏

[@runnerboys9277]

my concept is crystal clear sir. now can easliy find direction of friction from the miniature visualization u did. in the start

[@vineetsingh6369]

Great explanation sir...-"friction a necessary evil."

[@syedarshil5970]

Sir thank you so much for this amazing session it cleared my whole concept about friction between two blocks 💖😊

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sir kya mast padhate ho aap !!! charan sparsh!!

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I just want to send a hundred thousand thank you's to this man ❤ Love you sir and Tq so much boht help hua isse ☺ Please Phd series mai aur bhi imp topics karwa dena

[@mohitgoenka99]

Sure dear. Check the playlist to find many topics

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all set sir love u im a dropper i scored 97 tile in physics in my mains first attempt but still had doubts now i might even score 100tile thank you very much!!!

[@hardikarora8662]

greatEST EXPLANATION of two block system ever !!

[@mohitgoenka99]

well done dear keep solving & learning #learnlikeneverbefore

[@sumitgupta310]

Thanks a lot sir bht prblms arhi thi friction m aj clr hogya very nice explanation ❤️🙌🔥

[@Aravindh.9]

5:50 Fmax = 75N, fmax = fl = 25N & acc of the system = 5 m/s^2 Even if the applied force is greater than 75N, Fl = 25N.

[@mr_d3f4ult]

THANK YOU SIR FOR THIS AMAZING PHD SERIES SACH ME PHD KRA DI AAPNE CONCEPT KI........

[@mohitgoenka99]

Most welcome dear

[@JARH_ADARSH]

sir maine abhi mock m two block system k ques m glti ki thi to m yha aagya mistake sudharne thank uh sir ab aage +4 always ...

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

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After watching your videos I gain confidence and pyqs bhi easily solve ho jaate h, thanks a ton 🙏🏻

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Sir jiiii.....kamaal karte ho sir ji aap. Thank u soooo much sir

[@mohitgoenka99]

Most welcome dear

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Is type mai to bhut problem definite aati thi pahle but sir ab ye mera strength ban gya Thanku sir 🙏 ☺

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dil se thankyou sir ye concept ekdum chamakgaya hai bahut problem hoti...in dealing these type of questions... thankyou

[@mohitgoenka99]

welcome dear keep learning

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Finally understood now I m feeling calm . thankyou sir

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sir only becuse of you i am feeling confident in physics even after studying for 1 year from pw i am not feeling that confident but after founding your chanel 1 month before my physics had become so much strong

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Bhai apne kaise use kia sir ka channel thoda briefly describe krna? 🙏❤

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Same condition bro thank God I found this channel

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​@@dharmakurmi1257 bro sir ka 20 days challenge follow Kiya hai Maine pyqs lagaye hai 2022 or 2023 or kuch chapters m 2021 ke bhi

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My physics teacher tought us 3 block system i understand it but they donot tought us 2 block system Thankyou sir for your videos Jee 2024 aspirant Target 220

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Thanks sir for this video bcz this concept become more strong only of u ....

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Most Valuable channel for JEE ASPIRANTS

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

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Sir aapka explanation to itna achcha hai ki iit phodne ka confidence agya hai thank you so much sir for such a wonderfull content

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pure gold....india owes you

[@Krishnanjan_Sil]

9:17 Sir, I think that the acceleration on the orange/ yellow block in the free body diagram will be on the left direction as it is pseudo acceleration.

[@TheAishupramod]

Thank you so much sir for making this concept crystal clear!!! Love from Kerala❤

[@mohitgoenka99]

You're most welcome

[@sanskargoantiya3112]

Sir es session ke note nhi hai kya by the way great explaination sir your are the gem of physics and also god love you sir❤❤

[@mohitgoenka99]

sorry dear, iske pdf notes nahi hai keep solving & learning & welcome to the era of true learning #learnlikeneverbefore

[@harshdevda3529]

I'm from pw batch and friction was not clear i had doubts thanks sir 🔥 now I understood everything

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No offense...but RJ sir is really overrated

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This is the most underrated channel and you are a star sir ..thank you very much for this beautiful class sir 🙏🙏

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thank you so much sir. hats of to all your efforts.

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If you got 97tile in phy why are you taking drop

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Best channel for physics on youtube👍🏻👍🏻👍🏻

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You made it crystal clear. Thank you sir 😊✨.

[@mohitgoenka99]

You are most welcome

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Sir this was very relevant and helpful. Enjoyed a lot and thank you for everything you did to us . Because yof you I liked this concept 😀

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if i wll get iit i will surely tell in my interview that mr rajwant singh and mr mohit goenka are gems of physics

[@mohitgoenka99]

lovely dear keep solving, learning and revising #learnlikeneverbefore

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atleast he has some dreams unlike u@@comradesofficialff8800

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mili IIT?

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@@AyushAwasthi_JEE2025 iit ism dhanbad

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@@sameersamal1708 ohh congrats bro...btw rank?

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Best physics teacher ❤ great sir.

[@mohitgoenka99]

keep learning dear #learnlikeneverbefore

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

[@satyam99999]

In the last case The max friction on 5kg BLOCK is 25N HOW IT WILL JUST MOVE AT 15N Btw IT WAS AN AWESOME SESSION LOVED IT❤❤❤❤❤ Thank You So Much Sir🙏🙏🙏🙏🙏

[@mohitgoenka99]

Keep it up

[@subhomandal6549]

same question

[@a_hi9856]

bro try to understand, only one block is not moving, the whole system is moving.... (the moment F becomes larger than fmax i.e 25, both blocks will then start moving at seperate acceleration)

[@nishantsadawarte3886]

Sir friction naso me bas gaya hai lecture dekh ke, maza aa gaya❤❤

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Best content of physics in whole youtube ❤️❤️❤️❤️

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Sir please make such videos which will explain important topics in short.... Just like projectile motion....It will be really helpful... Thank u for this one🤩😇😇

[@mohitgoenka99]

Noted

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thanku so much sir ❤❤

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Sir ji hame quality education dene aur visualise krke padhane ke liye thanx..🙏

[@mohitgoenka99]

You are most welcome dear

[@raviShankar-ff8lw]

Please make a video on direction of friction and some time Norma force is MG cos theta and friction question on incline plane and force vertical on friction question

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I WILL COME BACK TO WATCH THIS VIDEO IN 2HRS !!🔥🤟

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Bkk

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So nice we need teacher like him

[@Andriano.]

Sir this lecture was awesome and gajbestic ❤️❤️💗❤️💗❤️💗❤️💗 And one request 🔥🔥🔥 Please make a PhD series on power questions including on water motor's power please sir 🙏🏻🙏🏻🙏🏻🙏🏻

[@user-fg1ii8wc3x]

this channel is soooo underrated ,I really like the phd series they were very useful thank u so much sirr...

[@mohitgoenka99]

#learnlikeneverbefore

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You deserve many many many more subs sir and one day with this dedication ik you will become the greatest physics teacher on this planet

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

[@praveenraj1656]

At 17:00 when applying the eqn We r applying for lower block Then i guess there total mass shd be 10+5 =15 not only 10 Plz correct me if im going wrong anywhere

[@mohitgoenka99]

25-15 =10a equation is just written for lower block dear. I made FBD of both block separately. So here mass be 10 kg only.

[@praveenraj1656]

@@mohitgoenka99 thank u so much sir🙏👍

[@sudhirkurude4031]

Oh nice you cleared my doubt thank u so much ❤️

[@user-dn7yf7cs4l]

The most of all videos on two block systems I have ever watched is not so good as you taught in too depth from basic to advance. Thank you sir ❤❤❤❤

[@mohitgoenka99]

@@user-dn7yf7cs4l most welcome dear

[@Joyboy098]

Kemon achis

[@Joyboy098]

Tui abhiman na ?

[@user-dn7yf7cs4l]

@@Joyboy098 Yes , you can assume

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hello sir ur channel has helped me a lot through out my jee preparation abhi advance ki padhai kar rahi thi toh socha phd series dekh lu aapke concenptual videos dekhe physics padhne main maja aane lagta hai aur samajhta bhi hai thank u sir for the support ur providing i will 100% suggest it to my juniors and pray 2 god that it grows more 🧿🧿💗💗

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Sir please start a series that covers important concepts through question for important chapters please sir

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Going on way completion of syllabus and this marvelous series I sway helping a lot ♥️♥️♥️♥️♥️♥️❤️❤️❤️❤️❤️❤️❤️💕💕💕

[@mohitgoenka99]

Excellent

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Sir please make video for 3 and 4 block problems for jee advanced 2023

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I don't know what is wrong with this man but really watched your full series for mains till date present on your channel ....... And literally I have gone from 0 to 100 in solving questions. You are one man army dude will meet sometime .

[@mohitgoenka99]

sure dear

[@virajdeshmukh7849]

Sachme kya bhai?

[@grishrana8432]

thank you sir i was really struggling to understand how the friction goes in diff direction in two blocks contact really helped me alot

[@samairamalik3404]

I have a q. in bth cases,5N also applies a downward normal force on 10kg right? we just ignore it bc its in vertical equi?

[@shaanIITP]

Thanks to you and my friend who suggested your channel for revision ❤

[@mohitgoenka99]

keep learning #learnlikeneverbefore

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Please make a video on how to solve HC verma concepts of physics 🙏

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Seriously one type of PhD Karli...in this topic...sir app aise hi content banate rahai.. please 🙏🙏 Thank you very very much 🥰

[@AshishJhq]

Crystal clear concept 🚀🚀

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When force is applied on both blocks then it becomes tough, pls make a vdo on this topic

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I am in love with this channel great content. Also is it possible to increase the size of that red pointer it will be helpful plz

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Your concepts are just lit 🔥, finally found this channel 🔥❤

[@mohitgoenka99]

Thanx dear & welcome to Eduniti

[@surajmundhe2489]

@@mohitgoenka99 Thanks a lot sir, ye topic abhi tak clear nahi hua tha, ab sab clear hai 🔥, btw sir I am neet aspirant to neet ke liye koi separate playlist hai kya? 🤔

[@mohitgoenka99]

@@surajmundhe2489 No dear but our PhD and revision series are equally relevant for you all

[@surajmundhe2489]

@@mohitgoenka99 okk sir ❤I definitely follow them, then 🔥✌

[@mohta.]

@@surajmundhe2489 bhai kaisa rha neet aapka

[@InfinusPlayZz]

Currently Preparing for BITSAT-2024 sir, these videos are still extremely helpful!

[@Aravindh.9]

16:21 acc of the system = 1 m/s^2, Fmax = 30N. Range of applied force: 15 - 30N.

[@PriyanshuDhami-ch1sj]

Thank you sir for such a good explanation ❤️😊 Sir plz keep on bringing these type of important concept videos sir🙏🏻🙏🏻

[@mohitgoenka99]

Welcome dear

[@yashjha2661]

Sir please make this type of video for Atwood machine also

[@Adobeaccount-jk9eg]

Done ✅ Day 2/7 phy hard challenge

[@JAGMEETHEBEST]

ARRE SIR THIS IS THE SAME TOPIC I STUDIED IN COACHING TODAY !! WHAT A COINCIDENCE SIR !!🔥🔥💯🤟

[@mohitgoenka99]

Great 👍

[@shreyash1382]

sir ye concept bohot tough lagta tha pehle lekin ab nahi thnnkyou so much sir

[@straww_8]

13:39

[@Abhishek583-techextremist]

he 👦 he boy

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Thanku sir Sir next nlm ki v concept video

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Tysm sir...I was struggling with this concept...but now it got crystal clear...❤

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✔ day 17 dhanwad sirr..

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Super explanation sir❤

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DHANYAWAD GURUJI🙏🙏🙏🙏🙏... i am feelling very confident sir ...aap to ekdum GOD aur GOAT(greatest of all time) ho sir❤❤❤❤❤❤❤❤❤❤❤❤💙💙💙💙💙💙💙

[@DefinitelyPiyush7]

19:22 Good approach

[@SatShriakal97]

Thnx sir is topic me bahut dikkat thi 🙏🙏🙏

[@jagritisingh2859]

Sir please make a video on that ques in which 2 blocks are connected with string and we have to find that there will arise tension or not??

[@indiany.t.4716]

Yes sir please

[@YuvrajSingh-do3ie]

YES SIR PLEASE