Question

Car 1 was sitting at rest when it was hit from the rear by car 2 of identical mass. Both
cars had their breaks on and they skidded together 6 m in the original direction of motion.
If the stopping force is ~ 0.7  (combined weight of the cars) , i.e.,  = 0.7, find the
approximate speed of car 2 just before the collision took place

Answer 1

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Explanation:

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