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Question: A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is: (Take \(\math...

A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is: (Take g=10 ms−2\mathrm { g } = 10 \mathrm {~ms} ^ { - 2 })

A

100 W

B

200 W

C

250 W

D

500 W

Answer

500 W

Explanation

Solution

Here, m = 100 kg, h = 10m, t= 20s,

g = 10 ms−210 \mathrm {~ms} ^ { - 2 }

The power of the crane is