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A weightlifter lifts a 1000 newton barbell above his head from the floor to a height of 2.5 meters. he holds the barbell there for 5 seconds. how much work does he do during the…

A weightlifter lifts a 1000 newton barbell above his head from the floor to a height of 2.5 meters. he holds the barbell there for 5 seconds. how much work does he do during the…
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a weightlifter lifts a 1000 newton barbell above his head from the floor to a height of 2.5 meters. he holds the barbell there for 5 seconds. how much work does he do during the 5 second interval?

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User Mustafah
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1 Answer

1 vote
Work done = Potential Energy = (mg)h

mg = weight of the ball

= 1000 N * 2.5 m = 2500 Joules.

The work done during the 5 second is 2500 Joules.
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User Michael Lihs
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