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Paper 1 · Kinematics and Dynamics

In a perfectly elastic collision, which statement correctly describes momentum and energy conservation?

AMomentum and total energy are conserved.
BMomentum is conserved but kinetic energy is not.
CMomentum is not conserved and kinetic energy is.
DMomentum is not conserved but total energy is.

ZIMSEC Physics Paper 1, June 2003, Q3

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