Essential University Physics: Volume 1 (4th Edition) Clone

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 3 - For Thought and Discussion - Page 50: 7

Answer

Yes

Work Step by Step

They are perpendicular at the top point of the trajectory, for the velocity will be completely in the x-direction at this point. (The acceleration is in only the y-direction throughout the whole trajectory.) Note, this neglects air resistance.
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