Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 3 - Kinematics in Two Dimensions - Check Your Understanding - Page 66: 3


(a) and (c)

Work Step by Step

Since the only force acting on the projectile is in the downward direction and is due to gravity, the acceleration is always in the downward direction. The directions of the acceleration in a and c are not downward, so they cannot represent the correct projectile motion.
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