A ball of mass 10 kg moving with a  velocity  103  m/s along the x-axis , hits another ball of mass 20kg which is at rest. After the collision, first ball comes to rest while the second ball disintegrates into two equal pieces. One piece starts moving along y-axis with a speed of 10 m/s. The second piece starts moving at an angle of  300 with respect to the x-axis. The velocity of the ball moving at  300 with x-axis is x m/s. The value of x to the nearest integer is ….The configuration of  pieces after collision is shown in the figure below.