Physics, asked by janak5454, 1 year ago

An engine develops 10kw of power. how much time will it take to lift a mass of 200kg to a height 40m.

Answers

Answered by dm7

15

Work to be done against gravity= 200×10×40
Power = 10000W

Power = Work/Time
10000=80000/Time
Time = 8s

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