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: 5

Answer

see solution

Work Step by Step

We know that: Stress = Force per unit area As we go down the column, the self-weight of the column increases which increases the force per unit area, i.e, stress. In order to keep the stress same, the area is increased at the bottom to compensate for the increased self-weight towards the bottom.
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