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 1 - Concepts of Motion - Exercises and Problems - Page 29: 5

Answer

positive

Work Step by Step

The v arrows are all pointing in the negative (downwards direction). The v arrows are decreasing in size as they get more negative. A is positive since it goes against the negative flow of the arrows.
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