Answers

2016-03-25T12:22:03+05:30
Power = work / time
           = force * displacement / time
           = mgh / t  = mas / t = force = speed

where m stands for the mass , g stands for acceleration due to gravity , h stands for height and t stands for time taken.
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2016-03-27T13:48:35+05:30
Power = Force × Displacement
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sorry incomplete answer posted
power = f×s / t
ignore ans