Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 6 - Dynamics I: Motion Along a Line - Exercises and Problems - Page 161: 12

Answer

(a) The block speeds up from 0 to 1. (b) The block continues to speed up from 1 to 2.

Work Step by Step

(a) The block has a net force $F_x$ that points in the positive x-direction. Therefore, $a_x$ points in the positive x-direction. Therefore, the block speeds up from 0 to 1. (b) Although the magnitude of the force decreases, the block still has a net force $F_x$ that points in the positive x-direction. Therefore, $a_x$ points in the positive x-direction. Therefore, the block continues to speed up from 1 to 2.
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.