Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 1 - Concepts of Motion - Conceptual Questions - Page 28: 5


Positive $a_y$

Work Step by Step

The velocity vectors of the particle are getting shorter and shorter. Also, the velocity vectors are pointing downwards. Therefore, the acceleration vector is pointing in the other direction (upwards). By our convention, $a_y$ is positive.
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.