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Physics · Mechanics Click an option to test your knowledge
If the momentum of a moving body is doubled, by what percentage does its kinetic energy increase?
A 50%
B 100%
C 200%
D 300%
Explanation: Kinetic energy is KE = p² / (2m). Doubling p gives (2p)² / (2m) = 4 × KE, so the increase is (4KE − KE) / KE × 100 = 300%.
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