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A particle describes SHM along a straigh...

A particle describes SHM along a straight line with a period of 2 s and amplitude 10 cm. Its velocity when it is at a distance of 6 cm from mean position is

A

`2pi cm//s`

B

`4pi cm//s`

C

`6pi cm//s`

D

`8pi cm//s`

Text Solution

Verified by Experts

The correct Answer is:
D
`v=omegasqrt(A^(2)-x^(2))`
`=(2pi)/(T)sqrt(100-36)=(2pi)/(2)sqrt(64)=8picm//s`
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