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A man exerts 500 Newtons of force to move a piece of furniture 2 meters. If it takes him 4 seconds to move the furniture, how much power does it require?

Respuesta :

Answer:

Explanation:

Work = (force) x (distance)

The work he did:    Work = (500 N) x (2m)  =  1000 joules

The rate at which he did it (power):  

Work/time =  1,000J/4s

                  =  250 joules/sec

                  =  250 watts  

Therefore he used 250 watts of power to move the furniture

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