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37) A120-g rubber ball is thrown with aspeed of 10m/s at an oncoming 900-kg car whichis

approaching at 30m/s, and undergoes aone-dimensionalelastic collision with the car. What is the

speed of the ballafter the collision?

A) 30 m/s B) 70 m/s C) 40 m/s D)50 m/s E) 10 m/s

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Casey Durgan
Casey DurganLv2
12 Mar 2019

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