Physicsmedium · Past Paper
If the speed of a car is doubled, its kinetic energy becomes:
ATwo times
BFour times
CHalf
DEight times
✓ Correct Answer: B — Four times
Kinetic energy is proportional to the square of velocity (v^2). If v is doubled, KE becomes (2v)^2 = 4v^2, which is four times the original.
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