Conceptual Physics (12th Edition)

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

Chapter 3 - Reading Check Questions (Comprehension): 22

Answer

For an object that is thrown straight upward, air resistance increases the magnitude of the acceleration. The object loses more speed each second than if there were no air. For an object falling straight downward, air resistance decrease the magnitude of the acceleration. The object gains less speed each second than if there were no air.

Work Step by Step

This is discussed on page 49.
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