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The displacement of a particle in SHM is...

The displacement of a particle in SHM is given by `y=2sin(2 pi t+pi/6)` m.The velocity of the particle at time `t=(1)/(2)` second is
1) `(4 pi)/(sqrt(3))` m / s
2) `2sqrt(3)pi` m/s
3) `-2sqrt(3)pi` m/s
(4) `-2 pi` m/s

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