Conceptual Physics (12th Edition)

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

Chapter 7 - Think and Discuss: 116

Answer

Yes. No.

Work Step by Step

An object can have potential energy because of its location, and mass-energy just by existing. At the same time, it can have zero momentum if it is not moving. However, if something is moving in a reference frame and has nonzero momentum, mv, it must also have KE, $\frac{1}{2}mv^{2}$.
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