(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A ball moving parallel to the y axis undergoes an elastic collision with a parabolic mirror y^2=2px.Prove that no matter where the prompt of impact lies it will arrive at the mirror's focus.

2. Relevant equations

3. The attempt at a solution

I believe this can be done in the same way we prove a result for reflection of light in a parabolic mirror.Please guide me if I am wrong.

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# Homework Help: Collision problem

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