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 9.2 - Momentum - Conceptual Example - Page 158: 9.1



Work Step by Step

There is no outside force doing work and no energy lost to friction, so it follows that the initial and final momentums of the system must be equal. The kayak is initially at rest. Thus, we find that the only way for momentum to be conserved is for the kayak to end at rest as well.
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