Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 6 - Force and Motion-II - Questions: 1b

Answer

$f_{s}$ decreases as $\theta$ and F increase.

Work Step by Step

Since the box is stationary, the forces on the box are equal and opposite. When $\theta$ and F increase, there is less resultant force pulling the box to the right. If there is less force to the right, then there has to be less force ($f_{s}$ ) pushing back in the opposite direction.
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