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Question 30415

JEE Physics · Medium

Work, Power and Energy: Kinetic Energy — Momentum MCQ

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Kinetic Energy — MomentumMediumQuestion 30415

Question

If momentum of a body is doubled, its kinetic energy becomes:

A
Double
B
4 times
Correct
C
Half
D
8 times

Correct answer

4 times

Explanation

KE = p²/(2m). If p → 2p, KE → (2p)²/(2m) = 4p²/(2m) = 4×KE.

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