Physics: Principles with Applications (7th Edition)

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

Chapter 4 - Dynamics: Newton's Laws of Motion - Questions: 20

Answer

When sliding downhill, the overall net force is smaller.

Work Step by Step

When the box is sliding uphill, consider the forces parallel to the incline: the component of weight parallel to the incline, and the force of friction. These 2 forces both point downhill, causing the box to slow down. When the box is sliding downhill, again consider the forces parallel to the incline: the component of weight parallel to the incline, and the force of friction. These 2 forces now point downhill and uphill, respectively, so their sum is smaller than before. With a smaller net force, the magnitude of the acceleration will be less.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.