Conceptual Physics (12th Edition)

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

Chapter 8 - Think and Explain: 92


See diagram.

Work Step by Step

The resultant (the diagonal of the parallelogram) points horizontally inward, and lies in the plane of the circle. This resultant, also known as the net force, is the required centripetal force needed to keep the ball rolling in a circle. The vertical component of the normal force balances the weight of the ball.
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