Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length. A third identical block C also of mass m moves on the floor with a speed v along the line joining A and B and collides with A. Then
The kinetic energy of the A-B system at maximum compression of the spring is `mv^(2)//4`
The maximum compression of the spring `vsqrt(m//3k)
The kinetic energy of the A-B system at maximum compression
The maximum coppression of the spring is `vsqrt(m//k)

Options

A. 1.2 and 3 are correct
B. 1 and 2 are correct
C. 2 and 4 are correct
D. 1 and 3 are correct