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Two identical blocks A and B , each of m...

Two identical blocks `A` and `B` , each of mass `m` resting on smooth floor are connected by a light spring of natural length `L` and spring constant `k`, with the spring at its natural length. A third identical block `C` (mass `m`) moving with a speed `v` along the line joining `A` and `B` collides with `A`. The maximum compression in the spring is

A

`vsqrt(m/(2k))`

B

`msqrt(v/(2k))`

C

`sqrt((mv)/(k))`

D

`(mv)/(2k)`

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The correct Answer is:
A
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