Physicshard · Past Paper
If the KE of a body is increased by 300%, by what percentage does the momentum increase?
A100%
B200%
C300%
D400%
✓ Correct Answer: A — 100%
New KE = 4 * Old KE. Since p = sqrt(2mK), new p = sqrt(4) * old p = 2 * old p. Increase is 100%.
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