Answer
$0.59s$
Work Step by Step
We know that
$x(t)=Acos(\frac{2\pi t}{T})$
We plug in the known values to obtain:
$6=10 cos(\frac{2\pi t}{4})$
$\implies \frac{2\pi t}{4}=arc \space cos (0.6)$
This simplifies to:
$t=0.59s$
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
by Knight, Randall D.
Published by
Pearson
ISBN 10:
0133942651
ISBN 13:
978-0-13394-265-1
Chapter 15 - Oscillations - Exercises and Problems - Page 415: 4
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