Conceptual Physics (12th Edition)

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

Chapter 7 - Think and Explain - Page 129-130: 85


If mass is doubled while speed stays the same, the momentum mv turns into (2m)v, and increases by a factor of 2. The KE, $\frac{1}{2}mv^{2}$, becomes $\frac{1}{2}(2m)v^{2}$ and also increases by a factor of 2.
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