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The resistance a surface or object encounters when moving over another.

0 votes

Static friction force on a block in a tunnel

No, you cannot measure this, because the friction would be negligible in comparison to gravity. Anyway, what would hold the block back? … In a normal situation, the block would just fall, and friction would play almost no effect, less than even air resistance. …
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Would this box on the floor rotate based on friction?

Even with non-zero friction, the object would rotate. … Friction is not enough to stop the rotation, because it is only a fraction of the normal force. F = kv, F = dp/dt (You would be better off using force = dp/dt, which goes to mdv/dt= kdv. …
cuabanana's user avatar