College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 10 - Conceptual Questions - Page 395: 3

Answer

see solution

Work Step by Step

Since the student hits downward, the concrete block sags which produces compression at top and tension at the bottom . Since concrete is weak in tension, hence it breaks at the bottom.
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