Physics (AS & A Level) · Oct / Nov 2019 · Paper 13 · Question 9
9702Linear momentum and its conservation
Two objects X and Y in an isolated system undergo a perfectly elastic collision. The velocities of the objects before and after the collision are shown. What is the speed v of Y after the collision?
- A2.0 m s–1
- B18 m s–1
- C22 m s–1
- D24 m s–1
As printed in the paper
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Correct answer: B. 18 m s–1
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