A 275-lb block rests on a horizontal floor. The coefficients of friction between the block and the floor are 0.53 for static and 0.36 for kinetic respectively. Determine the force (P) that is required to a) Just break the block loose and get it moving b) Maintain the block moving at a constant speed

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!