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Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 10

9702Linear momentum and its conservation

A rock in deep space is travelling towards a distant star and collides with a stationary spacecraft. What is not a possible outcome of the collision?

  1. AThe rock becomes stationary and the spacecraft moves towards the star.
  2. BThe rock moves away from the star and so does the spacecraft.
  3. CThe rock moves away from the star and the spacecraft moves towards the star.
  4. DThe rock moves towards the star and so does the spacecraft.

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Correct answer: B. The rock moves away from the star and so does the spacecraft.

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