A student is standing on a skateboard that is not moving. The total mass of the student and the skateboard is 50 kilograms. The student throws a ball with a mass of 2 kilograms forward at 5 m/s. Assuming the skateboard wheels are frictionless, how will the student and the skateboard move?
Pick from: (I) forward at 0.4 m/s (II) forward at 5 m/s (III) backward at 0.2 m/s (IV) backward at 5 m/sThe answer is: