Conceptual Physics (12th Edition)

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

Chapter 3 - Think and Explain - Page 55: 59


The acceleration from 25 km/h to 30 km/h is greater.

Work Step by Step

The change in velocity for the first case, 30 km/h - 25 km/h = 5 km/h, is greater than for the second case, 100 km/h - 96 km/h = 4 km/h. The elapsed times are the same, so the larger change in velocity results in the greater acceleration. The relevant equation and concepts are discussed on pages 43-44.
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