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+2 votes
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in Physics by (8.8k points)
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A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remain constant during the fall? 

(a) Kinetic energy. 

(b) Potential energy. 

(c) Total mechanical energy. 

(d) Total linear momentum.

1 Answer

+1 vote
by (13.8k points)
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Best answer

(c) Total mechanical energy. 

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