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a man exerts 700 newtons of force to move a piece of furniture 4 meters. if it takes him 2 seconds to move the furniture, how much power does it require?
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a man exerts 700 newtons of force to move a piece of furniture 4 meters. if it takes him 2 seconds to move the furniture, how much power does it require?

User Thekidder
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1 Answer

3 votes

Work = (force) x (distance)

The work he did: Work = (700 N) x (4m) = 2,800 joules

The rate at which
he did it (power): Work/time = 2,800 joules/2 sec

= 1,400 joules/sec

= 1,400 watts

= 1.877... horsepower (rounded)

User Ron Kalian
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8.2k points
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