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A guy pushes a box of mass 10kg along an inclined plane of 15.0. The coefficient...

A guy pushes a box of mass 10kg along an inclined plane of 15.0. The coefficient of kinetic friction is 0.2. The man gives a force of 50N on the box along the inclined plane and the box goes through a displacement of 2m. Find:

a) the net work done on the box

b) if the guy takes 2 minutes to move the box 2m, then find his power

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