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A 15 kg block is accelerated at 2.0 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 24 m/s.
(a) What is the change in the block's mechanical energy?
J
(b) What is the average rate at which energy is transferred to the block?
W
(c) What is the instantaneous rate of that transfer when the block's speed is 10 m/s?
(d) What is the instantaneous rate of that transfer when the block's speed is 24 m/s?
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