Question

A 25kg crate is lifted from 230m above the ground in 250sec. How much work is required to lifted it into the air and what is the average power exerted on the crate
Work = mass x gravity x height

Work = 25kg x 9.8m/s2 x 230m = 559,000 Joules

Average Power = Work / Time

Average Power = 559,000 Joules / 250sec = 2,236 Watts

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