Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 10
9702Linear momentum and its conservation
An object of mass 2.0 kg is travelling at a speed of 3.0 m s–1 on a horizontal frictionless surface. This object collides head-on with a stationary object of mass 1.0 kg. The two objects stick together on impact. How much kinetic energy is lost on impact?
- Azero
- B2.0 J
- C2.4 J
- D3.0 J
As printed in the paper
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Correct answer: D. 3.0 J
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