The angular frequency of a spring block system is $ω_{0}$ This system is suspended from the ceiling of anelevator moving downwards with a constant speed v $_{0}$ . The block is at rest relative to the elevator. Lift issuddenly stopped. Assuming the downwards as a positive direction, choose the wrong statement:

Question

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Answer 1

Since $V_{0}$ is the maximum speed of the ball in its equilibrium position.
$∴ V_{0} = ω_{0} A A = \frac{V _{0}}{ω _{0}}$
So equation of motion becomes $\frac{V _{0}}{ω _{0}} = A s i n ω_{0} t$ as there was no initial phase in the SHM.
There was no initial phase in the SHM.
Hence B is correct.

Answer 2

Since

V_{0}

is the maximum speed of the ball in its equilibrium position.

∴ V_{0} = ω_{0} A A = \frac{V _{0}}{ω _{0}}

So equation of motion becomes

\frac{V _{0}}{ω _{0}} = A s i n ω_{0} t

as there was no initial phase in the SHM.

There was no initial phase in the SHM.

Hence B is correct.