Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 9 - Exercises and Problems: 47

Answer

a) $a= \frac{v_0dm}{Mdt}$ b) The maximum speed of the car will be equal to the speed of the water initially.

Work Step by Step

a) We find: $F=\frac{dp}{dt} \\ F=v_0 \frac{dm}{dt}$ Using Newton's second law, it follows: $a= \frac{v_0dm}{Mdt}$ b) Since the water bounces up at the same speed it hits at, we find that $\fbox{the maximum speed of the car will be equal to the speed of the water initially.}$
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