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Physics 19 Online
OpenStudy (anonymous):

Starting from rest, a 4.80-kg block slides 2.40 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μk = 0.436. (a)Determine the work done by the force of gravity. (In Joules) (b) Determine the work done by the friction force between block and incline. (In joules) (c) Determine the work done by the normal force.

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