A laundry uses an elevator to move items from one level to another. The elevator has a mass of 500 kg and moves upward with constant acceleration for 3.00 s until it reaches its cruising speed of 1.75 m/s. (Note: 1 hp = 746 W.)   (a) What is the average power (in hp) of the elevator motor during this time interval?   (b) What is the motor power (in hp) when the elevator moves at its cruising speed?

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