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A particle executes SHM according to equ...

A particle executes SHM according to equation `x= 10 (cm) cos [2pi t + (pi)/(2)]`, where t is in second. The magnitude of the velocity of the particle at `t = (1)/(6)s` will be

A

24.7 cm/s

B

20.5 cm/s

C

28.3 cm/s

D

31.4 cm/s

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The correct Answer is:
D
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