How is the power related to the speed at which a body can be lifted? How many kilograms
will a man working at the power of 100 W, be able to lift at constant speed of 1ms-¹vertically?
(g=10ms-²)
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Answer:
Power=timework done or energy=tmgh=m.g.th
Here th=speed
Therefore, m=g×speedpower=10×1100=10 kg
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