What is Rolling Friction? | Physics | Don't Memorise

[@InfinityLearn_NEET]

#DidYouKnow: Bike wheels that are thicker will lessen the potential speed of the bike because there is a greater wheel surface to create friction against the surface which will slow the bike. ✅To learn more about Friction, enroll in our full course now: infinitylearn.com/cbse-fullcourse?KZbin&DME&HRe90ySP38U To cover all concepts related to Physics visit our playlist here: bit.ly/PhysicsVideos_DMYT

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[@_No__one_me_]

What the friction is

[@SoulEater2008]

Pls can you make video of sliding friction????

[@naveensihag2775]

Not sufficient....

[@mukashpal6334]

yes u r right

[@mayankbhardwaj295]

Pls make a video on ball bearing too. How does ball bearing reduces friction?

[@kshitijlahoti8725]

bcz it is cylindrical

[@fairgamingyt1286]

@@kshitijlahoti8725 wrong spherical in shape

[@asmamehran8424]

Ball bearing is spherical in shape and it reduces friction because area in contact is very low and it doesn't allows friction to act on the balls and surface irregularities are also less.

[@narasimhakaviti4393]

yes

[@dead7781]

Like others have said, ball bearings are spherical and that makes them very low in friction. Balls, as you may know, also roll much easier and freely than any other 3D shape. One thing other's haven't mentioned is that the balls can be shaped really precisely. Not all of them are the same, and not all of them are made from the same material. That is why ball bearings come in different qualities, some spin faster than others. It all depends on how well rounded the bearings are. The smoother they are, the less friction and the more speeds they can reach. Sometimes they are greased or lubricated to have even less friction and this can make them gain acceleration incredibly fast. The bearings also have "shields" that protects them from getting dirt or any small particles that may disturb the smoothness. How well these shields do their job depends obviously on the quality of the bearing.

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[@InfinityLearn_NEET]

Thank you so much your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/

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Glad you like them! Shubham 🤗🤗Thank you so much for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/

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[@InfinityLearn_NEET]

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[@InfinityLearn_NEET]

You're most welcome. We are glad that you understood the concept. We are happy that we could help you learn. For more videos, please visit our website - dontmemorise.com/

[@AZGaming77]

3:28 3:31 3:32 3:32 3:32 3:33 3:37 3:40 3:44

[@EricRobb]

You never answered the question of why

[@zn2473]

But the topic of the video is "WHAT" is rolling friction

[@logannaluai9860]

It's easier to move objects with wheels because wheels use friction to push the object forward. Since a spinning pushes backward on the surface the friction between the wheel and the surface pushes it forward.

[@ytcsede5505]

E

[@jsingh8192]

I think friction directly proportional to Surface area . Sliding friction have more surface area and in case of rolling having less

[@gowsi8933]

@@jsingh8192 what if we replace the small wheels with the small cubes?

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[@sadhnalohana6611]

friction can be used by using ball bearings because they ------------- (a) make the surface plane (b) make the surface grassy (c) convert sliding friction into rolling friction (d) have no friction of their own..

[@yashpalpatel4176]

C

[@muskanasghar2666]

Really helpful

[@InfinityLearn_NEET]

Thank you so much muskan for your appreciation. We hope that you understood the concept. We are glad that we could help you learn. For more videos, please visit our website - dontmemorise.com/

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He is male

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[@pendemsuhaas3138]

static friction lifting a chair and putting it somewhere; sliding friction sliding i.e pushing it on the ground ; rolling friction is pushing an object with wheels😊😊😊😊

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[@InfinityLearn_NEET]

You're most welcome. We are glad that you understood the concept. We are happy that we could help you learn. Do support us by subscribing to our channel. 👍👍

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[@ramak3504]

3:00 rolling friction

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It help me soo much thank u

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please make a video on ball bearings 🙏🙏🙏please

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[@InfinityLearn_NEET]

Thanks for your appreciation. We are really happy to hear that it was helpful to you. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos. 😊😊

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[@InfinityLearn_NEET]

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[@arshadulhaqueahnaf7882]

Can anyone tell that where will be the friction if I consider a moving wheel only

[@jeevikapandita3862]

friction will still be between the surface and the wheel, the only change is that it will reduce a little friction as the load won't be there anymore.

[@Frizi5516]

Tqsm

[@bhawyaranjan2981]

Ma'am can you please clear my doubt? A glass top table which is very smooth, but even then a rolling ball stops. After some time. Why?

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You can write to us at [e-mail]. Thank you!

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[@InfinityLearn_NEET]

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[@maniramsinghani6393]

madam you said the sliding friction is on higher side generally but if the size(mass) of the objects change like in case of a car if we are pulling it and on the other hand if we are pulling a10kg of a box which would be easier??

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Do a video about centripetat forcr

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Plz will u take the concept of English also?

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[@prachipawar9616]

Mam i didnt understan d the static friction

[@GAMINGGODS-6]

Thnx

[@Chantwithanni]

Nice video

[@Satnam7275]

It is said that during pure rolling (e.g;car moving without skidding), there is no friction at the point of contact(net velocity is zero => v=rw). Now u say there is friction. What is true?

[@khushinegi0822]

Thank you man

[@InfinityLearn_NEET]

You're very welcome, Khushi!

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Hindi mein bhi friction ki videos banaiye please

[@gopikapradeep7427]

Good👍👍

[@gopikapradeep7427]

Easy to study thankuu