Correct Answer - D
(d) `v=omegasqrt(A^(2)+x^(2))" "`(in SHM)
or `v^(2)=omega^(2)A^(2)-omega^(2)x^(2)`
Comparing the given equation with this equation we get,
`omega^(2)=9`
`therefore omega=3=(2pi)/(T)`
`therefore T=(2pi)/(3)` units
Also , `omega^(2)A^(2)=144`
`therefore A=4 "units", |a|=omega^(2)x=(9)(3)=27` units
Displacement ` le` distance