All Questions
Tagged with rotational-kinematics friction
58
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Question about rolling and slipping of a cylinder for example down an inclined plane
What is the point at which sliding occurs?
I know sliding is when the $V_{cm}$ goes faster than the point of contact on the ground. But I've been reading that sliding occurs when the total torque on ...
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How to judge direction of motion?
I have this scenario
suppose a cylinder is made by joining two symmetrical cones and is given a gentle push on two rails A and B . What will be the motion of cone . Will it turn right or left
I ...
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Wheel slips and weight
With rainy season starting, I have been thinking about traction and have a question:
Question: If two identical vehicles, one of mass $m$ and the other of mass $2m$ are starting from rest with equal ...
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Direction of friction of a rotating ring/disk
I'm trying to understand friction but I'm getting a bit confused...
If I have a ring rotating on the ground around its COM what is the direction of the friction?
If I have the same ring, but this time ...
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The ball-in-cylinder problem I've encountered
This is going to be one of the most childish questions ever asked on this site but hear me out.
Today, as I'm fiddling around with balls and toilet rolls (as one does), I found something interesting ...
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Conservation of energy of 2 identical Rolling Disks with and without friction
My physics book claims that if two identical disks moving at the same velocity travel up nearly identical hills, with the second hill not having friction, then the disk rolling up the first hill will ...
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4
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Conservation of angular momentum and collision [closed]
The problem:
Consider a thin ring rolling without slipping (pure rolling) on a rough surface (means there is friction) with constant velocity $v_0$. The ring hits a vertical wall elastically and ...
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How far a sphere will move if we stick smaller sphere at different positions
There is a big sphere of mass M and radius R, and a small sphere with mass m and radius r. Now smaller sphere is stuck at a certain height and angle $\theta$.
The ball would roll to some distance. I ...
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Rolling race where objects roll with slipping
One of the interesting demonstrations of Moment of Inertia includes the "Rolling Race" where objects of same mass and radii but having different Moments of Inertia, are allowed to roll down ...
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How friction force synchronize linear velocity and angular velocity? [closed]
I am doing a simulation about moving balls on a surface. There are frictions between different balls and the surface. In the beginning, balls have a linear velocity and an angular velocity (which are ...
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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 ...
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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
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3
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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 ...
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1
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how does a car move? and how do the brakes affect its velocity? [duplicate]
im doing a project that requires me to understand how cars move. from what I understand , its the friction that is creates in the tires that enables the tire to rotate, which then push the car forward....
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Billiard ball with side spin
A cue ball is travelling along a snooker table. Initially, it has only side spin (yaw). As it travels it will develop a rolling spin (pitch).
Can the ball develop any (roll) and thus move off the ...
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