Asked by Anonymous

A box that weighs 725 N is lifted a distance of 20.0 m straight up by a cable attached to a motor. The job is done in 6.5 s. What power is developed by the motor in watts and kilowatts?
Answered by Henry
P = FV = 725 * (20 m / 6.5 s. = 2231 W = 2.231 KW.
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