Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 9 - Static Equilibrium; Elasticity and Fracture - Misconceptual Questions: 6

Answer

Choice C.

Work Step by Step

There are three forces acting on the ball: the weight pulling downward, the tension in cord A pulling up and to the left along the direction of cord A, and the tension in cord B pulling up and to the right along the direction of cord B. Applying Newton’s second law to this equilibrium case, it can be shown that the leftward-directed horizontal component of the tension in cord A is just as strong as the rightward-directed horizontal component of the tension in cord B. Cord A is farther from being horizontal, but still manages to balance the horizontal component of tension in cord B, so that means cord A has a greater tension in it.
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