A 1,000-W motor powers a hoist used to lift cars at a service station. (a) How much time would it take to raise a 2,150-kg car 3 m? (b) If the original motor is replaced with one rated at 3,000 W, how long would it take to complete this task?

A 1,000-W motor powers a hoist used to lift cars at a service station. (a) How much time would it take to raise a 2,150-kg car 3 m? (b) If the original motor is replaced with one rated at 3,000 W, how long would it take to complete this task?

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Question

A 1,000-W motor powers a hoist used to lift cars at a service station.
(a) How much time would it take to raise a 2,150-kg car 3 m?
(b) If the original motor is replaced with one rated at 3,000 W, how long would it take to complete this task?

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