Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 9 - Work and Kinetic Energy - Conceptual Questions: 5

Answer

The kinetic energy of the plastic cart is equal to the kinetic energy of the lead cart.

Work Step by Step

The work $W$ done on each cart is $W = F~s$, where $F$ is the force and $s$ is the displacement. Since the force is the same for both carts, and the displacement is the same for both carts, the work done on each cart is the same. Each cart starts from rest and the work done on each cart is the same. Therefore, the kinetic energy of the plastic cart is equal to the kinetic energy of the lead cart.
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