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Perpetual motion: Conditions for rolling a wheel sliding on a bar [closed]
This is a basic question about energy conservation and classical mechanics:
Question: Under what situations can this motion be perpetual?
Without gravity and without frictions.
Without gravity and ...
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Why does Friction act Parallel to the Surface (Microscopic Level)?
If we assume an object (blue layer) sliding towards the right across a surface (black layer). According to Newton's 3rd Law, the frictional force would act to the left (resisting the object's relative ...
user226894
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Is cause of this equilibrium - tension or friction?
This is a very odd problem which I have.
As you can see in the diagram, the string is taut. So, if there was no friction you could clearly say that tension is balancing it or if there was no tension ...
user94848