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neelakash
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Homework Statement
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.
Homework Equations
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.