All Questions
Tagged with rotational-kinematics friction
8
questions with no upvoted or accepted answers
2
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3
answers
71
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Is there a reference frame in which the static friction from rolling does positive work?
I am worried this will be deleted as a duplicate question, so I will try to be extra clear what I am asking:
In some reference frames, static friction can do positive work. If you have a crate in the ...
- 21
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When a wheel begins to roll on a flat surface, is it due to fulcrum generated at the contact point by friction?
[Edit: What I'm trying to understand is how any wheel rolls on a surface, instead of just spinning in place. I know that friction provides the force to make the wheel roll, but I'm unsure about the ...
- 1
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3
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Doubt: (For pure rolling motion and friction)
For pure rolling motion, at the point of contact of the wheel at the ground the net velocity is 0, so there is no relative motion. But if at that instant no relative motion, then how can static ...
- 43
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No-circular motion on a turntable
As the title says, I want to model the path of an object sliding on the surface of a turntable, as it is slowly flung off.
The final application of this is , modelling fine material moving along the ...
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Is there a physics explanation for why dry steering damages tyre?
I used to think dry steering damages tyres because static friction takes place when the car is not moving, as opposed to dynamic friction when the car is moving. (Note: static friction has greater ...
- 797
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1
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67
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Horizontal component of velocity in case of rolling
I was having a hard time to understand that the point of contact in case of rolling without sliding has zero velocity. So after some research, I posted my understanding as an answer How can the ...
- 823
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1
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93
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Work done by static friction in Rolling
In rolling without slipping, I understand that the velocity of the point where static friction with the ground is 0, and therefore static friction cannot do work. However, from newtons laws, an object ...
user225234
-1
votes
1
answer
198
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Why does no slipping occur when a particle is attached to a string, which is wound onto a circular disk, and the system is allowed to move?
In this question, the only way we can find the angular acceleration of the disc is by equating it to the linear acceleration of the particle divided by the radius. But this holds only if the string ...
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