Question

A box of mass 10kg is lifted through a height of 10m in 4s .Find the corresponding power.(explain)

Answer 1

Mass = 10kg
Acceleration = 10m/s2
time = 4sec
Height =10m
Therefore energy = mgh = 10*10*10=1000 J
And,
Power = energy / time
P = 1000/4
P = 250 W.  
So the answer is 250 W….  
I hope it helps.. 

Answer 2

Answer:

Explanation:

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