Conceptual Physics (12th Edition)

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

Chapter 5 - Think and Explain - Page 87-89: 66

Answer

a. The two forces are the weight, and the normal force from the incline. b. As shown in the diagram, the resultant force points downhill.
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