A 4.0-kg block is on an incline plane of 30 degrees angle with respect to horizontal....

A 4.0-kg block is on an incline plane of 30 degrees angle with respect to horizontal. a)What is the minimum coefficient of static friction (μ_s)_min is need to prevent it from sliding down? b) If the surface μ_s is 0.30, less than (μ_s)_min now, how much force(F) is needed to apply to the block horizontally to prevent it from sliding down?c) If F is doubled, what’s the acceleration of the block up the incline? Assume the coefficient of kinetic friction is 0.25.

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genius_generous answered 1 week ago

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