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

Question

A body is falling freely under the action of gravity alone in vaccum. Which of the following quantities remain constant during the fall?, Kinetic energy, Potential energy, Total mechanical energy, Total linear momentum

MARKS App · Accepted Answer

As the body is falling freely under gravity and no external force act on body in vaccum so law of conservation, the potential energy decreases and kinetic energy increases because total mechanical energy (PE + KE) of the body and earth system will be remain constant.

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