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A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting? A. 45.6 J B. 372.4 J C. 588 J D. 446.9 J
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A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting?

A. 45.6 J
B. 372.4 J
C. 588 J
D. 446.9 J

User Alexander Zeitler
by
7.5k points

1 Answer

3 votes
well first you have to use the formula U=mgh, U being pontential energy, m being mass, g being gravity (9.8m/s^2 on earth), and h being height. so you plug them in. U= (3.8 kg)(9.8 m/s^2)(12 m) = 446.9 J. So your answer is D. 446.9 J
User Hoopje
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7.8k points
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