Dynamics of rigid bodies 2) The spring in the toy gun has an unstretched length of 100 mm. It is compressed and locked in the position shown. When the trigger is pulled, the spring unstretches 12.5 mm, and the 20-g ball moves along the barrel. Determine the speed (m/s) of the ball when it leaves the gun. Neglect friction.

Dynamics of rigid bodies 2) The spring in the toy gun has an unstretched length of 100 mm. It is compressed and locked in the position shown. When the trigger is pulled, the spring unstretches 12.5 mm, and the 20-g ball moves along the barrel. Determine the speed (m/s) of the ball when it leaves the gun. Neglect friction.