Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 11 - Oscillations and Waves - Questions: 9

Answer

The period of the swing decreases.

Work Step by Step

Approximate the swing as a pendulum. Equation 11–11a tells us that the period of a pendulum of length L depends on the square root of its length, $T=2 \pi \sqrt{\frac{L}{g}}$. When you rise to a standing position, you basically shorten the length L. The period of the swing decreases.
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