ball with a mass of 0.10 kg has a velocity of 7 m/s. It strikes a concrete wall perpendicularly and bounces straight back with velocity of 4 m/s. The change in the ball's momentum was equal to(adsbygoogle = window.adsbygoogle || []).push({});

Response Answer Choices

a. 0.30 kg m/s

b. 0.10 kg m/s

c. 0.40 kg m/s

d. 1.1 kg m/s

0.1 x 7 and .4 x .1 = .7 and .4 and subtracting them gives .30 kg m/s, correct?

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# Homework Help: Quick Question - Conservation of Momentum

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