Question

A person carrying 10 bricks each of mass 2.5kg on his head moves to a height of 20m in 50s.Calculate the power spent in carrying the bricks by the person.(g=10ms-2)

Answer 1

100 joule per second is the power carrying the bricks

Answer 2

Power=Fs/t

F=mg=2.5×10×10=250

Power=Fs=(250×20)/50=100 Watt

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