4 Minimum force to pull | Two block problem | Friction | IIT JEE main advanced | Class 11 physics
Vložit
- čas přidán 6. 08. 2024
- To practice after watching this video, Buy My Digital book from Team Competishun App: teamcompetishun.page.link/dig...
Minimum force to pull | Two block problem | Friction | IIT JEE main advanced | Class 11 physics
the magnitude of static friction, coefficient of static friction, what is limiting friction, the minimum force required to pull, the minimum force required to pull on an inclined plane, two block problems, examples of two block problems, three block problems, frictional force acting between two blocks, are discussed by Kota famous faculty Amit Bijarnia ABJ sir IITD.
------------------------------------------------------------------------------------------------------------------------------------------------------
Topics covered in this lecture :
00:00 Minimum Force Requirement for Pulling a block
03:23 : Maximum Static Friction and Its Relationship to Force and Angle
10:22 : Determining Minimum Force and Angle to Pull the Block
12:09 : Examples on the basis of above discussion (question : a 10kg block is pulled with f force and rope make angle 37 degree then for min force what will angle and min foce=? )
16:02 : Example mixed with the concept of inclined plane
21:17 : Understanding Force Requirements
23:42 : Maximum Value of Static Friction
24:43 : Example (Question : a wire and bead is given then find max height so that bead does not slip )
32:59 : Solving a Two-Block Problem with Friction(Question : two block kept to each other friction between block is 0.6 find acc. and friction between them )
36:28 : cases on the two block problem : case 1: assume that both block move together
39:11 : Minimum Force of 6 Newtons Required to Move 10 kg Block
41:02 : Frictional Force Acting Between Two Blocks
46:47 : Frictional Force Required to Move Both Blocks Together
49:37 : Understanding the Relationship Between Friction and Force
52:38 : cases on the two block problem : case 2 : Both blocks are moving separately.
55:59 : Minimum Force Required to Overcome Friction
58:10 : examples on the two blcok problems
59:37 : Minimum Force to Pull a Two-Block Problem with Friction
1:05:00 : Maximum Frictional Force Calculation
1:05:51 : Example (Questions : finding max fore so that there is no slipping between blocks=? )
1:08:09 : Minimum Force to Pull with Friction
1:13:12 : Minimum Force Required to Pull the Two-Block Problem
1:15:49 : more example on Two block problems( finding acc and frictional force acting on blocks=?)
1:17:56 : solving the case 1 for above question
1:25:05 : solving the case 2 for above question
------------------------------------------------------------------------------------------------------------------------------------------------------
Friction for JEE Mains and Advanced | Kinetic Friction | Static Friction | Limiting Friction | Minimum Force to Pull | Three-Block Problem | Coefficient of Friction | Laws of Friction | Inclined Plane with Friction | Frictional Force Calculation | Angle of Friction | Tension in Friction Problems | Wedge Block Friction | Rolling Friction | Frictional Heating | Applications of Friction in Mechanics.
------------------------------------------------------------------------------------------------------------------------------------------------------
1 Kinetic friction | Friction | IIT JEE main advanced | Class 11 physics | Olympiad | KVPY | BITSAT • 1 Kinetic friction | F...
2 Static friction | Limiting friction | Friction | IIT JEE main advanced | Class 11 physics • 2 Static friction | Li...
3 Examples on static friction | Friction | IIT JEE main advanced | Class 11 physics • 3 Examples on static f...
4 Minimum force to pull | Two block problem | Friction | IIT JEE main advanced | Class 11 physics • 4 Minimum force to pul...
5 Three block problem | Friction | IIT JEE main advanced | Physics class 11 | Physics Olympiad • 5 Three block problem ...
Minimum force to pull,Two block problems, Friction,IIT JEE main advanced,Class 11 physics,
Minimum force to pull ABJ Sir,Two block problems ABJ Sir, Friction ABJ Sir,IIT JEE main advanced ABJ Sir,Class 11 physics ABJ Sir,
------------------------------------------------------------------------------------------------------------------------------------------------------
𝐍𝐞𝐰 𝐂𝐨𝐮𝐫𝐬𝐞𝐬 @𝐂𝐨𝐦𝐩𝐞𝐭𝐢𝐬𝐡𝐮𝐧: linktr.ee/competishun
𝐂𝐨𝐦𝐩𝐞𝐭𝐢𝐬𝐡𝐮𝐧 𝐖𝐞𝐛𝐬𝐢𝐭𝐞 : online.competishun.com/
𝐂𝐨𝐦𝐩𝐞𝐭𝐢𝐬𝐡𝐮𝐧 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: EduCompetishun (App Link: bit.ly/3OJ9vCU)
𝐏𝐂𝐌 𝐂𝐡𝐚𝐩𝐭𝐞𝐫 𝐰𝐢𝐬𝐞 𝐘𝐨𝐮𝐓𝐮𝐛𝐞 𝐏𝐥𝐚𝐲𝐥𝐢𝐬𝐭: bit.ly/389Pt22
📞 𝐅𝐨𝐫 𝐪𝐮𝐞𝐫𝐢𝐞𝐬, Contact us at: 8888000021, 7410900901, 7410900906, 7410900908,
#JEEMain #JEEAdvanced #Physics
Beta beta beta beta beta..... 🙂
Coaching wale itne Paise lekar bhi itna pyarr se nhi padhate , thank you so much Sir . We owe you 😃🙏
Truee
@@332k4 Bhai paid batches mein hai dpp
So true 🥹🥲
16:50 similar problem in Irodov. ABJ Sir never states what level of questions he's taking In classes. Unlike others who keep boasting Advance, advanced......
Respect : ♾️
🙏🏻🙏🏻🙏🏻
yes im currently in 11th and i chose this teacher because he explains so nicely we feel we are doing a very easy problem , but I can solve the complete hcv after watching his lectures.
easy
@@kapisht1227 Same here pehle bht uchalta tha abhi thik ho gya huon jay Abj baba
yahi baat achi lagti hai koi bol deta hai ki jee adv ya mains ka hai question starting ma to daar lagta hai lekin jab ho jata hai aur koi tab bataya to acha lagta hai
Bhai literally sir is great 🥲mein ncert mein suffer karta tha abhi physics interesting ho chuki hee 😂aur sab accha chal raha heee..
@38:33
Ipads:- We are very costly....we are above from all other tabs present in market.
Le ABJ sir:- Hold my marker........I will make you a block
Bwahahaha 😂
Best. Lecture. Of two block system. On whole CZcams.
best lecture in ohio 🔥🔥🔥
@@nerdy6600that's corny
@@nerdy6600Abj sir = Ohio final boss
@@nerdy6600 doesnt even make sense
@@nerdy6600don't try to be cool
It's ind vs Pak match in worldcup and i am here watching your lecture
I am very big fan of cricket but when it comes to your teaching Sir I am greatfull that a teacher like u is here on utube
You missed Kohli's masterclass ! 😂
@@ShivamVerma_18i’d be proud to be honest
@@kashyaptandel5212Uff...the burn.
hmm is it really necessary to post this comment i mean maybe its true most of them think its show sorry if im wrong D;@@riztsh25
@@ShivamVerma_1850[40] s.f😢
27[28] s.f
Still hurts 😢
You were correct sir. These problems look easy but when we do ourselves we get little confused. It needs practice.
You are one of the best teachers!!
Fr
At 38:33 blocks are too costly 😅
3:07 sir control himself 😅 that's nice of him❣️
i m in class 11th ....started jee prep in april 2024...found this channel in april itself....I M SUPER SUPER LUCKY!!!!
Your teaching style is very nice sir..
I really like when you call us "beta"
It's like pyar se type😄🤩..
#beta ap log toh kr hi lnge😅..
Sir 38:30 niche vala block kuch jyada hi sasta nahi ho gaya 😆😆😆🤯🤯
I HOPE I CRACK JEE ADVANCE 2025 AS A DROPPER, FINALLY UNDERSTANDING WHAT REAL PHYSICS IS
THANKS A LOT SIR
We're thrilled to hear about your progress and understanding of physics. Keep pushing forward, and we believe you'll crack JEE Advanced 2025. Best of luck!
Best regards,
Team Competishun
Same queue
Isase achcha lecture nahin ho sakta thats amazing.Thank you sir 👍
Best lecture for Jee advance
Sir thank you so much for teaching us 🙏❤🌻
You are the one teacher jiska padhya hua physics mujhae feel hua hai in these three years
Thank you so much sir 🙏
Aap hie kie wajah sae mujhae physics mae itna confidence aa paya hai
Thank you sir...thank you so much 🌻❤
Crystal clear sir!!!! Thankyou so muchh :D
Best video on friction in entire internet. Amazing lecture. Thanks sir
Sir ,you teaching style is very good ,I can easily understand .thanks sir
Sick and tired of PW ads
Thank you sir very much , sab samajh me aa gya 🙏🙏🙏🙏
Very nice explanation ♥️
Sir... Feel aa gaya ekdammm!
Sir, your quality of content is best on youtube...
Superb lecture. Thank you so much Sir
Thankuu sir pure ache se smjh me aa gyi subha rora tha aisa sawal ny bnra tha bht try kiya thnkuu sir..🙏
Nice one Sir
Thankyou sir,
Best explanation.🙏🙏🙏
love you sir .... great lectures
Thank you for everything sir
I can't explain it in words how grateful I'm to you🔥💖
Charan Sparsh Sir🙏
thankyou so much sir, will make you proud i hopw
Thank you sir
Two block problems starts from 32:55
Thanks sir
16:15 Irodov question, 25:10 JEE Adv PYQ (in that question wire was smooth and in was motion)
this shows the level of questions he takes in his lectures 🔥🔥
Best ❤
Kitni bhi other language bole but rajsthani to us me add ho he jati hai 😂😂❤❤🎉 love you sir ❤❤
Abj sir is the best physics teacher for IIT-JEE love you sir🔥❤️
Thanks Sir, how many more lectures left in Friction
2 more I guess
ABJ sir se jo physics padta ha uski physics favourite ho jate ha :)
best lecture❤
Brilliance at its sheer peak sir! Understanding level pro max
Ye jo sir sheet krne ko kehte wo milegi kaha ?
Its 2024 and he is still the god of physics 🙏🙏 very nice lecture sir
20:54 Sir here in this question fsmax should be in direction of F for the F to be minimum so then Fmin would be (mgsinalpha - fsmax) instead of (mgsinalpha + fsmax)
Thank you sir 🙏
Thankyou 😁
1:02:55 sir the range for a so that motion can start for both moving together, don't you think it should be 8/3
Nitin sachan sir had also taken the illustration the same way as you did , U both litteraly are GOD for me ....
1:17 4:59 10:03 11:48 13:19 14:43 17:03 21:37 24:05 26:29 32:27 35:53 46:23 52:08 57:52 59:39 1:04:28 1:07:12 1:14:02 1:15:08 1:17:55 1:28:04
Best teacher ❤❤❤
1:19:44 sir i think that on upper block kinetic friction will occur bcoz if F is acting on it right direction and if that surface is rought then first static friction will try to balance that F but as we know that static friction can balance till a limit which is their 80 N ( 0.8×100 =80 N ) .After that , if F is more than max value of static friction then their will be relative motion btw blocks and kinetic friction will try to avoid the relative motion. So i think their shld be kinetic friction.
Okaayy so I think I understand your doubt and I can clear your doubt as well.
So let's start, look at the question at 47:36 , where F=75 N, even here, static friction is there between the blocks(NOT kinetic) although f(limit)=30 N ... but you didnt have a doubt then right ? Even though it's essentially the same case as the case in your doubt, blocks are in contact and force is on only one of the blocks. So simply apply the logic you used at 47:36 in your doubt and I think your doubt should be cleared.
If not, then you need to truely understand the concept, feel it, I'll try to explain, static friction tries its best to make acceleration between the blocks same, force needed to accelerate blocks, of different masses, is different.
In the question you had a doubt, you're thinking that 90N is greater than limiting friction(=80N) hence the blocks must have different accelerations, but in reality, that's now how things work,
Static friction acts on block A to try to make its acceleration equal to that of Block B, but since static friction is a pair force, it acts on block B too ! Due to which acceleration of block B is reduced, hence "lesser force" is needed to bring block A to the same acceleration as of block B, and THAT "lesser force" is 60N and and since that lesser force of 60N is less than limiting friction, HENCE static friction is present between the blocks and NOT kinetic friction.
I hope you understood... it's tricky to explain it on text .. just re watch the lecture, sir explained it very well.
Man I love you you only teacher who teach me physics 💕
THANKS SIR
Sir do we need to assume they move togther in every question? It's quite tedious and if you skip that step then the acceleration of both bodies turn out to be different (even if they are supposed to be same)
thanks sir
1:18:30 Me motivating my friend to study.
Sir , do you suggest to solve and learn from :-) Physics Galaxy 's ADVANCED ILLUSTRATIONS ? Please help Sir .
Sure
Yes solve them they are good
Sir at 22:10 can we use the formula of minimum value of asintheta+bsintheta for the numerator..... plss tell
love you sir
God of physics 🙏
math
Sir electrostatic padhne ke liye prerequisite kon se chap h
God of physics
Sir. Appp. Beta. Bolte hain. Bhoot. Acha lgta hai. ❤️❤️
🤣🤣🤣
This is what we called leveling up gradually
Crystal clear explanation. Baki teachers to two block system ke naam pe neet ka pyq kara de rahe h
sahe me sir app bhot pyaar se padhate hoh sir
revise 24:43 bead question
❤❤❤
Sir will there any batches in competishun for kvpy sa revision when its dates will be announced?
Very nice
@Rekha Bansal Dpps are only in paid batches
Sir please reply kardo
it should be kinetic friction instead of static
i dont get it,will these block even move together with same acceleration? 1:21:13
They'll move together only when static friction is 60N but since the force acting on upper block is 90N(More than limiting friction) the friction acting then will be kinetic so the blocks wont move together with same accelerations ryt.
Abe sir ne mu ki value aak he di hai mtlb kinetic Static fric. Same hoga
Why we pull block at any angle rather than horizontal??
Sir please modern physics shuru kardijiye 🙏
32:21 sir how does mu (a constant) vary with change in x coordinate
Y=x2 wale question ko angle of repose sai bhi kar sakte the na ?
Usse hi to kiya hai
Sir will there be any batches in competishun for kvpy sa revision when dates of kvpy sa will be announced?
kvpy is on 31st jan 2021. The date was announced in the month of august
sir practice sheets kaha milegi
please tell me sir
You made me realise physics is easy
0:05 12:05 15:00 24:35 34:05 58:10 1:05:05 1:16:00
How practically it can be understood to biginer r that two forces are acting simultaneously except friction and normal which seems imaginary
Abj sir I want to meet u soon
Sir 1:14:06 pr ( F -50-60=20×5 ki jagah F-50-60= 30×5 hoga ........ correct me if i am but i m just a bit confuse
Nahi, sir ne upar wale block ki friction force count karli hai to upar wale block ka mass consider karne ki jarurat nahi hai.
54:49 friction opposes motion then why does friction being applied in the direction that the block want to go to
Because in question it is given that there is no slipping between blocks so friction acts in such a manner so that there is no relative motion between them bcz if there is any relative motion between them than friction is kinetic and not static
sir I have a doubt..... at 1:12:09 what will be the minimum value of F so that blocks start moving together? will it be 60N due to the frictin from ground or will it be (60 +50 = 110) due to friction from both the ground and the upper block as well? I got confused by the first way while taking blocks as different systems.
Thank you.
bhai iska ans mila ? merko bhi same confuaion h
60 N hoga
Is que me minimum aur maximum same hi hoge
5ms² max hai na , 110 like minimum aa jayegi,
Sir Can you finish physics by Feb 2021
@Parvti Pandey he has said january
58:49 same question in jee mains 2019
10:01
14:42
24:08
32:05
44:55
56:01
01:04:53
01:15:08
01:21:36
01:28:06
sir why pseudo force is not applied at 57:11
Bhai waha pheudo force kyo ayga koi vajah hi nhi hai
1:27 min firce required to pull a block 37:04 two block prblm 49:57 1:00:39 1:07:40 1:15:46 1:22:27 1:25:01
Thanku Sakshi.... ❤
💜.
Sir nae kabhi kuch ni kha😅but sir thanks
38:00
34:01 timestamp
25:25 got deja vu lol
1:05:50 most confusing qs for me.
1:00:00
#JEEDropper2024
sir please reply how much hours of self study is required to crack iit?
#askCompetishun sirji pls tell ki denominator ko max karne ke liye deifferenciate karke 0 ke equal kyu put kiya
minima wala concept hai
Maxima wala concept bro
Agar hame kisi function ka maximum/minimum value nikalna hai to usko differentiate krke 0 ke barabar equate kr do.
Note
-: Maximum value ke case me function ka double derivative 0 se chota aayega aur minimum ke case me double derivative 0 se bada aayega.
Bro yahi concept hai tumne aid. Nhi pada kya maths mein ?
Moreover for the trigonometric form of a cos theta + b sin theta maximum value is root over of a square + b square
Yah wala toh sabse basic trigonometry hai