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Two blocks, of masses M and 2M are conne...

Two blocks, of masses `M` and `2M` are connected to a light spring of spring constant `K` that has one end fixed, as shown in figure. The horizontal surface and the pulley are frictionless. The blocks are released from rest when the spring is non deformed. The string is light.

A

Maximum extention in the spring is `(4Mg)/K`

B

Maximum Kinetic energy of the system is `(2M^(2)g^(2))/K`

C

Maximum energy stored in the spring is four times that of maximum kinetic of the system.

D

When the kinetic energy of the system is maximum, energy stored in the spring is `(4M^(2)g^(2))/K`

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A, B, C
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