Two simple harmonic motions are represented by the equations ${y_1} = 0.1\sin \left( {100\pi t + \frac{\pi }{3}} \right)$ and ${y_2} = 0.1\cos \pi t.$ The phase difference of the velocity of particle $1$ with respect to the velocity of particle $2$ is
  • A$\frac{{ - \pi }}{3}$
  • B$\frac{\pi }{6}$
  • C$\frac{{ - \pi }}{6}$
  • D$\frac{\pi }{3}$
AIEEE 2005, Medium
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