# Find the power of a crane if it lifts a load of 750N up to height of 200m in 100 seconds.

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given :

m = 750N

h = 200m

t = 100sec

g = 9.81 ≈ 9.8

then ,

P = mgh/t => Pt = mgh

100P = 750*9.8*200 = 14,70,000

then ,

P = 14,700 W

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