Physics

Problem

t=0

, a particle executing simple harmonic motion is at a displacement equal to

\dfrac{A}{2}

on the positive side and is moving towards the equilibrium position. In the expression

x = A\cos(\omega t + \phi)

, which one of the following values can

\phi

take (in the range

0

2\pi

)? a)

\dfrac{5\pi}{3}

\dfrac{\pi}{6}

\dfrac{\pi}{3}

\dfrac{2\pi}{3}