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September 22, 2014

Homework Help: physics

Posted by andy on Tuesday, September 18, 2012 at 12:46am.

A 4.85-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.440. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, (b) accelerating upward with an acceleration whose magnitude is 2.35 m/s2, and (c) accelerating downward with an acceleration whose magnitude is 2.35 m/s2

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