Conceptual Physics (12th Edition)

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

Chapter 5 - Think and Explain: 34

Answer

a. Action: the hammer exerts force on the nail. Reaction: the nail exerts force on the hammer. b. Action: Earth pulls down on a book. Reaction: the book pulls up on the Earth. c. Action: the helicopter blade pushes air downward. Reaction: air pushes the helicopter blade upward.
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