a person carrying 10 bricks of 2.5 kg eack moves to a distance of 20m. find work done
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Answer:
Mass of the 1 brick = 2.5 kg
mass of 10 bricks= 2.5 × 10 = 25 kg
power = work done × displacement / time
= mgh/t
= 25 × 10 × 20 / 50
= 100
there the power is 100 W
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