An engine develops 10 kw power how much time it will take to lift a mass of 200 kg to a hieght of 40 m
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work done/ time =power
here work done=mgh
g=10 m/s^2
200×10×40/10,000=time=8 sec
here work done=mgh
g=10 m/s^2
200×10×40/10,000=time=8 sec
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