Question

A boy climbs up a vertical tree of 10m high. If his mass is 60 kg, calculate work done by him. Hint; Work= mgh

Answer 1

m=50 kg t=30sec h=20/100 X 30=6 P=W/t work done-mgh therefore,P=mgh/t (g=10m/s^2) =(50*10*6)/30 =100 hence P=100

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Answer 2

Explanation:

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