Physicsmedium · Past Paper
A bullet is fired into a target and loses half its velocity after penetrating 3cm. How much further will it penetrate before coming to rest?
A1 cm
B2 cm
C3 cm
D1.5 cm
✓ Correct Answer: A — 1 cm
Using v^2 - u^2 = 2as, the ratio of further distance to initial penetration is 1:3 for a 50% velocity drop.
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