All Questions
5 questions
1
vote
3
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How is momentum conserved in this collision with loosely-connected spheres?
There are three identical spheres. B and C are loosely connected with a light inextensible string, and A approaches B directly at some initial velocity $v$. There is no angular momentum.
A and B have ...
- 5,188
-1
votes
1
answer
42
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Angular momentum and General Plan Motion
Let us consider a general body, having both translation and rotational motion. Let O be the origin, and C be the center of mass of body. Total mass of body is $M$
Let us take small point mass $m_i$ in ...
- 2,062
0
votes
1
answer
51
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How do I apply the principle of conservation of angular momentum in this case?
I came across a question:
A disc of mass 2M and radius R lying in a vertical plane which is free
to rotate about a fixed horizontal axis passing from its centre. A
particle of mass M is tied to a ...
- 15
1
vote
2
answers
2k
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Rotational physics of a playing card
A playing card leaves a dealers hand with some angular velocity. As the card slides across a table the friction of the table causes the rotation to slow. How is the friction coefficient between the ...
- 121
0
votes
2
answers
1k
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Momentum of a rack and pinion gear system excited by a time variant force
Background
I have a rack and pinion gear system as shown in the image below
The pinion gear is attached to a flywheel at the back.
The first state of the system, none of the gears or the flywheel ...
- 231