A 15 kg block is accelerated at 17 ms2 up a frictionless, Ask an Expert

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A 15 kg block is accelerated at 1.7 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 28 m/s.

(a) What is the change in the block's mechanical energy?

(b) What is the average rate at which energy is transferred to the block?

(d) What is the instantaneous rate of that transfer when the block's speed is 28 m/s?

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