Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 6 - Think and Rank: 39


a. Momenta, greatest to least: B, D, C, A b. Impulse needed to stop the ball, greatest to least: B, D, C, A

Work Step by Step

a. The momentum is mv. In the order ABCD, the momenta are: $$p=9 \frac{kg \cdot m}{s}$$ $$p=10.2 \frac{kg \cdot m}{s}$$ $$p=9.6 \frac{kg \cdot m}{s}$$ $$p=10 \frac{kg \cdot m}{s} $$ b. The impulse is defined as the change in momentum. The order will be identical.
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