Answer
$$40 \mathrm{\ m} / \mathrm{s}
$$
Work Step by Step
The speed of the wave is
$$
v=\frac{\lambda}{T}=\frac{\omega}{k}=\frac{2510 \mathrm{rad} / \mathrm{s}}{62.8 \mathrm{rad} / \mathrm{m}}=40 \mathrm{m} / \mathrm{s}
$$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 16 - Waves-I - Problems - Page 476: 62f
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