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Starting from rest, a 5.0 kg block slides 2.5 m down a rough 23.0 degree incline in 3.0 seconds. The acceleratin of gravity is

Starting from rest, a 5.0 kg block slides 2.5 m down a rough 23.0 degree incline in 3.0 seconds. The acceleratin of gravity is 9.81 m/s 2. (a) Find the work done by the force of gravity (b) Find the change in mechanical energy due to friction. Answer in units of J. (c) Find the work done by the normal force between the block and the incline. Answer in units of J. 15.01

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