A body weighing 40 kg carries a box weighing 20 kg to the top of a building 15 m high in 25 seconds. Calculate the power.
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Work = Potential Energy
Mass = 40+20 = 60kg
Height = 15m
Time = 25s
Work = 60*10*15
Time = 25s
=> 60*10*15/25 = 360 Watts
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