Two rectangular blocks A and B of masses 2 kg and 3 kg respectively are connected by a spring of spring constant \[10.8\,N{{m}^{-1}}\] and are placed on a functionless horizontal surface. The block A was given an initial velocity of \[0.15\,m{{s}^{-1}}\]in the direction shown in the figure. The maximum compression of the spring during the motion is