00:08 Friction opposes motion 06:29 Friction is the opposition to relative motion. 12:18 Friction is affected by irregularities and adhesive forces. 18:20 Wheels are considered one of the greatest inventions of mankind. 23:24 Static friction is the resistance experienced between objects when they are at rest. 28:52 Static friction is greater than sliding friction and rolling friction is the least. 35:19 Friction works in opposite directions for the rear and front wheels of a cycle. 41:11 Friction is a necessary evil in machines and everyday life. 46:40 Friction: force affecting relative motion 52:39 The output is between 3157.36 and 3159.44
wheel is pushing the ground backwards, that's why the wheel is moving foreword. I know the person who has asked the question is now in class 9 but this answer is for those who don't know
does friction come into play only when two objects are in relative motion ? If so then why do we say we need friction to hold ,as there is no relative motion in this case.
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Lubricant is a substance used to decrease friction either by making the object smooth or increasing moisture between them. This is used in cycle chains, old gates, rusty gears etc.
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00:08 Friction opposes motion
06:29 Friction is the opposition to relative motion.
12:18 Friction is affected by irregularities and adhesive forces.
18:20 Wheels are considered one of the greatest inventions of mankind.
23:24 Static friction is the resistance experienced between objects when they are at rest.
28:52 Static friction is greater than sliding friction and rolling friction is the least.
35:19 Friction works in opposite directions for the rear and front wheels of a cycle.
41:11 Friction is a necessary evil in machines and everyday life.
46:40 Friction: force affecting relative motion
52:39 The output is between 3157.36 and 3159.44
U deserve more than 1 like ❤
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@@aksharaarnav-le4oh Is your science paper will be on 25/9/2024
@@SHAZAIN.11 yeah? ig
4:15 class starts
Thanks 😂
Ok
onense opon thime therr was a boy
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Mee ❣️
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5:55 true 👌
9:03 with different velocity
9:19 to increase or decrease smoothness comparison of the friction
Any one making notes 👇🏻
4:47 Rolling Friction
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Thanks a lot for liking the session Shambhavi🤩 Keep watching!
Sir why the friction was there in forward if the real wheel was moving forward?
wheel is pushing the ground backwards, that's why the wheel is moving foreword.
I know the person who has asked the question is now in class 9 but this answer is for those who don't know
4:18 class started
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Phisics Wallah is more best than magnet brains and byjus......
@@Devilgirl...893 but it is too long
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Yes new byjus is ok, but old byjus is emotion 😢
19:46 thanks for extra knowledge able
Adhesion meaning- The tendency of different molecules to attract each other, causing materials and objects to stick together
thanks
thank you sir for this video 😊😊😊
Most welcome Bhavesh😊 Keep watching!!
I can't understand how the friction of rear wheel is in forward🤔🤔🤔
thankyou very much byjus!
Sir more than teaching you are answering those children 😢
Sir actually your teaching is excellent
True
it is a recoded live steam
It is their responsibility to answer them and it is also additional information for us
So please try to be happy
Sir I like ur classes and I am a subscriber of byjus I also attend live byjus classes why don't u come and teach us in our regular classes sir
10:03 sir I have a doubt what about the mirror ?
Thank you sir, fell in love with your teaching style
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CBSE Class 8 | BYJU'S Champions Academic Series | BYJU'S Class 8 Maths
Sir both are true 6:23
15:49 mass
Thank you byju's for your hard work 🎉❤😊
True
but when both hand are moving together the friction acting on them is fluid friction
How
Thanks sir for this wonderfull explanation❤😊
39:10 ghumna hota hai😂😂😂😂😂
41:44 in short, front wheel is receiving friction and rear is applying friction
Sir the friction exerted on rear wheel is apposite to motion not from the direction of motion
Sir .your answer is right. And Sorry for my reply. You teaches the best
Sir if we are not pdelling and because of the speed both the tires are still moving is there any friction at that point of time?
15:05 more the weight more will be the friction😅
the cycle is running without a chain
30:52 static
😊
No, every teacher are. Best all channels
👍👍A great session
Byjus is always best👍👍
Best way to study --Byju's
Keep it up 👍👍👍👍👍👍
Thanks a lot Ananya😍 Glad you shared your thoughts! Keep watching!
33:52
Friction between road and bicycle
Name any object which have a '0' percent of friction
🔝🔝🔝physics class ever I seen in the world 🌍
18:31
Because it has smooth surface
13:06 to increase decrease frition
"Quantum stabilized atom mirror" is found to be the smoothest solid surface as flat, rigid, perfectly smooth
does friction come into play only when two objects are in relative motion ? If so then why do we say we need friction to hold ,as there is no relative motion in this case.
15:44 w = mg
Weight= mass × acc. due to gravity
5:56 False
17:56 sir agar two 15 kg ke box ho to friction km hoga ya jyada
Byju's teacher are best ❤😊 Because they are very hard working person 😊😊❤❤.
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true
Thanks a lot
Most welcome Bhawana🤩
Where do you discuss the live classes cause my exams are near and i want you to take live classes on TH-cam
My name is jyotirmay😂
sir why old bags have 2 wheels and nowadays they have 4 wheels why and how it is helpful
4:20 / 52:37 class start
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4:19 class start 😂😂😂
class starts 4:20
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friction causes heat and air pressure
Thank you sir for this video 😊😊😊 it help me most 😊
13:55 smoth surface less friction
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Hey Himanshu, Thanks for sharing your thoughts🤩 stay tuned for more!
True
Truly false
No they are real scammer😂😂😂
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11:13 thanks sir I am yesha shah your subscriber....
8:42 static friction?
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Masallah
Your teaching skills wher continue inspired myself ❤💞🤗
Yes you letter right md hassan ❤
@@Islamic__thought79 👍
Thank you sir for clearing my doubt
10:09
8:06
5:46
Heehee
Sir , how can i complte my syllabus in 2 -3month??? Sir please telll me ...
Thank you sir for giving wonderful explanation.I got full marks in physics. thank you for good explanation and your best wishes forehead also ❤️❤️❤️🥰🥰
Rolling friction
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It's used for respect
Try to obey people
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4:52 opposite direction
Thanks
Welcome Riyaz🙌
Sir but both the wheels are rotating in the same direction so how is friction different
Thanks a lot byjuse teachers🎉🎉🎉🎉🎉🎉🎉🎉
thank you, sir, for this great session!
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Sir aap bhout accha padha te ho
I understood all the concept the teacher are teaching effectivly thank you byjus
Very nice sir
Thanks Suman🤩
mujhe joh doubt rehta hai sub ye video dekh ke clear hoj ata hai
mujhe joh doubt rehta hai sub ye video dekh ke clear hoj ata hai
Sir what is lubricant?
Lubricant is a substance used to decrease friction either by making the object smooth or increasing moisture between them. This is used in cycle chains, old gates, rusty gears etc.
12:00
56:00
Best physics teacher in byjus
Static friction
Sir back wheel also move forward
4:20 is when the sesssion starts with the chapter
Sir I have an doubt that is there any friction between a hydrophobic plate and a drop of water on it ???????😅
There might be friction but the amount is very low
Class Start at 4:19
Hii sir
6:00 true
15:35 you can do it well
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Sir you are the best teacher
sir so in magnets also have Adhession
Weight how heavy the object is
Great explanation
my doubts are clear after watching your video
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Soo good ty soo much