Conceptual Physics (12th Edition)

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

Chapter 5 - Plug and Chug - Page 86: 23

Answer

100 km/h – 75 km/h = 25 km/h north 100 km/h + 75 km/h = 175 km/h north
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