A ball has a mass of 0 point 2 5 kilograms and is moving to the right at 1.0 meters per second It hits a ball of mass 0 point 1 5 kilograms that is initially at rest. After the collision, the 0 point 1 5 kilograms ball moves off to the right with a velocity of 0.75 meters per second What is the final velocity of the 0 point 2 5 kilograms ball?