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A 13 kg block is accelerated at 1.9 m/s2 up a frictionless plane inclined at 4.5°...

A 13 kg block is accelerated at 1.9 m/s2 up a frictionless plane inclined at 4.5° to the horizontal, with the speed increasing from 14 m/s to 32 m/s. What are (a) the change in the block's mechanical energy and (b) the average rate at which energy is transferred to the block? What is the instantaneous rate of that transfer when the block's speed is (c) 14 m/s and (d) 32 m/s?

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