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A spring mass system (mass m, spring con...

A spring mass system (mass m, spring constaant k and natural length l) rests in equilibrium on a horizonrtal disc. The free end of the spring is fixed at the centre of the disc. If the disc together with spring mass system, rotates about it's axis with an angular velocity `omega(kgt gt komega^(2))` the relative change in the length of the spring is best given by the option :

A

`(m omega^2)/k`

B

`sqrt(2)/3(m omega^2)/k`

C

`(m omega^2)/(2k)`

D

`(3m omega^2)/k`

Text Solution

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The correct Answer is:
A
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