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Two identical blocks A and B are connect...

Two identical blocks A and B are connected with a spring of constant k as shown in ligure. If block B s moving rightward with speed `V_0` maximum extension of spring is

A

`[V_0{sqrt(m/k)}]`

B

Zero

C

`[V_0{sqrt(2m/k)}]`

D

`[V_0{sqrt(m/2k)}]`

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