A circular turntable of radius 0.5 m has a smooth groove as shown in figure. A ball of mass 90 g is placed inside the groove along with a spring of spring constant 102 N/cm. The ball is at a distance of 0.1 m from the center when the turntable is at rest. On rotating the turntable with a constant angular velocity of 102 rad/sec the ball moves away from the initial position by a distance nearly equal to: