## Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson

# Chapter 9 - For Thought and Discussion - Page 163: 4

No

#### Work Step by Step

While momentum is conserved, the momentum of the ball system is not always the same. After all, when one ball hits the edge of the table, the table gains momentum, even though it may not be noticeable. This means that the momentum of the ball that hits the table and thus the momentum of the entire system of balls changes.

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