A 661-kg elevator starts from rest and moves upward for, Ask an Expert

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A 661-kg elevator starts from rest and moves upward for 2.50 s with constant acceleration until it reaches its cruising speed, 1.62 m/s.

(a) What is the average power of the elevator motor during this period?

(b) How does this amount of power compare with its power during an upright trip with constant speed?

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