Conceptual Physics (12th Edition)

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

Chapter 14 - Think and Discuss: 94

Answer

Yes.

Work Step by Step

The two teams of horses used in the demonstration were there for dramatic purposes. The net force on the apparatus is zero, with a large force provided by one team of 9 horses pulling toward the right, and another large force provided by a team of 9 horses pulling toward the left. If one team were replaced by a tree, the force diagram for the apparatus would be identical.
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