Answer
$\phi=20 rad$
Work Step by Step
Phase of the motion is given as:
$\phi=3\pi{t}+\frac{\pi}{3}$
At $t=2.0s$, we find the value of $\phi$:
$\phi=3(3.1416)(2)+\frac{3.1416}{3}$
$\phi=20 rad$
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 15 - Oscillations - Problems - Page 436: 9d
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