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No. If the wall is stationary and infinitely massive, you’d bounce off at the same velocity; if it was moving at the same speed as you you’d bounce off at three times the original velocity.

Edit: if the other object is a car, then yes, there is no difference in either case from your perspective.




If the collision is completely inelastic, then there will be no bouncing. In a car, usually the crumple zone completely absorbs and dissipates all the energy kinetic.


Yeah, this was assuming an idealized perfectly elastic collision, which is a bit difficult to have in the real world ;)




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