Conceptual Physics (12th Edition)

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

Chapter 13 - Think and Explain: 76


When the inflated beach ball is held beneath the surface, it displaces a lot of water. The weight of that water is much greater than the ball's own weight, resulting in a large upward buoyant force on the ball. When the ball is released, there is a large net upward force and the ball shoots out of the water.
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