Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 7 - Kinetic Energy and Work - Questions: 6a


The particle has the greatest kinetic energy at x=3.

Work Step by Step

From x=0 to x=3, the particle is being pushed forward by a force in the positive direction. The particle accelerates during that whole period because only one force is acting upon it. At x=3, the particle is traveling at its fastest speed, therefore it has the greatest kinetic energy. Once it reaches x=3, the force becomes negative and slows down the particle, consequently decreasing kinetic energy.
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