A block is tied within two springs, each having spring constant equal to k. Initially the springs are in their natural length and horizontal as shown in the figure, the block is released from rest. The springs are ideal, acceleration due to gravity is g downwards. Air resistance is to be neglect. The natural length of spring is l0 .
If the decrease in height of the block till it reaches equilibrium is √3l0 then the mass of the block is.
(D) None of these
