Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 9 - Section 9.4 - Collisions - Got It? - Page 154: 9.5


Collisions: a, b, d, e a and b: nearly elastic d and e: inelastic

Work Step by Step

c) is not a collision since the ball never hits anything. (All of the rest are collisions.) The key idea with d and e is that they stick to each other following the collision, making them inelastic. a and b, however, are nearly elastic, for the objects bounce and lose almost no energy in the process.
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