Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 9 - Section 9.6 - Elastic Collisions - Conceptual Example - Page 168: 9.2


We see that one ball will go 45 degrees below the x-axis, and the other ball will go 45 degrees above the x-axis.

Work Step by Step

Recall, when one ball is initially at rest and another ball of equal mass collides with it, the balls will go at a 90 degree angle to each other. This is consistent with our answer, where the two balls go at a 90 degree angle from each other.
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