Conceptual Physics (12th Edition)

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

Chapter 6 - Think and Explain: 81

Answer

The direction of momentum is to the left.

Work Step by Step

Calculate the system momentum. Let positive velocities be toward the right, and negative velocities be toward the left. $(0.5 kg)(1 m/s) + (0.8 kg)(-1.2 m/s) = -0.46 kg m/s$ The negative sign shows that the momentum is toward the left.
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