Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 5 - Newton's Laws of Motion - Conceptual Questions - Page 139: 5


She will travel down at a constant speed.

Work Step by Step

If the force she exerts is equal to her weight, the net force is zero. Since $F=ma$ and the force is zero, the acceleration is zero. Also, since $a=\frac{\Delta v}{\Delta t}$ and $a=0m/s^2$, there is no change in velocity and therefore she must be traveling at a constant speed.
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