A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remains constant during the fall?

A body is falling freely under the action of gravity alone in vacuum.

1.	A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remains constant during the fall?
A.	Kinetic energy
B.	Potential energy
C.	Total mechanical energy
D.	Total linear momentum
Answer» D. Total linear momentum

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A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remains constant during the fall?

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