The displacement of a body executing SHM is given by \( x=A \sin (2 \pi t+\pi / 3) \). The first...

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The displacement of a body executing SHM is given by \( x=A \sin (2 \pi t+\pi / 3) \). The first time from \( t=0 \) when the velocity is maximum is
(a) \( 0.33 \mathrm{sec} \)
(b) \( 0.16 \mathrm{sec} \)
(c) \( 0.25 \mathrm{sec} \)
(d) \( 0.5 \mathrm{sec} \)
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