Conceptual Physics (12th Edition)

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

Chapter 4 - Think and Explain: 59

Answer

Yes, if the ball slows down, according to Newton's second law, there is a net force opposite to its motion. This force is likely due to rolling friction and air resistance.
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