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A-LevelPhysicsDynamics9702/12 · Oct/Nov 2009 · Q71 Mark

Which statement about a ball that strikes a tennis racket and rebounds is always correct?

ATotal kinetic energy of the ball is conserved.

BTotal kinetic energy of the system is conserved.

CTotal momentum of the ball is conserved.

DTotal momentum of the system is conserved.

✓ Correct answer

D: Total momentum of the system is conserved.

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About this question

Topic: Dynamics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2009 Paper 1 Variant 2, question 7.

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