Physics (10th Edition)

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

Chapter 2 - Kinematics in One Dimension - Focus On Concepts: 19

Answer

(b)

Work Step by Step

The rocket starts to free-fall only after it reaches the maximum height. There is a residual force after the engine stops, so there would be a gap of time before the rocket reaches its maximum height. At its maximum height, the coefficient of "a" in the parabolic equation is equal to 0.
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