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Two identical small discs each of mass m...

Two identical small discs each of mass m placed on a frictionless horizontal floor are connected with the help of a light spring of force constant k. The discs are also connected with two light rods each of length `2sqrt(2)m` that are pivoted to a nail driven into the floor as shown as shown in the figure by a top view of the situation. If period of small oscillations of the system is `2pi sqrt((m//k))`, find relaxed length (in meters) of the spring.

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The correct Answer is:
`4.76m`
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