A 5.3 kg block rests on a level surface. The coefficient of static friction is...

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A 5.3 kg block rests on a level surface. The coefficient of static friction is ? = 0.67, and the coefficient of kinetic friction is ?* = 0.48 A horizontal force, F, is applied to the block. As F is increased, the block begins moving. Describe how the force of friction changes as F increases from the moment the block is at rest to when it begins moving. Show how you determined the force of friction at each of these times - before the block starts moving, at the point it starts moving, and after it is moving. Show your work.

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