A 450kg bumper car, with a spring which have a spring constant of 3x10^7 N/m collides at a speed of 2m/s with a solid wall. It gives a maximum compression of 7.7mm. At what speed will the car rebound of the wall?(adsbygoogle = window.adsbygoogle || []).push({});

I am having trouble with this one... I don't know how to go about solving the problem. The answer btw is 1.6m/s

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# Homework Help: Collisions, Hooke's Law.

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