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A body is falling freely under the actio...

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

Text Solution

Verified by Experts

(c ) As the body is falling freely under gravity, the potential energy decreases and kinetic energy increases but total mechanical energy `(PE+KE)` of the body and earth system will be constant as external force on the system is zero.
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