In a physics lab, the pitching speed of a student is determined by throwing a baseball into a box and observing the box's motion after the catch. A measurement of the distance the box slides across a rough surface of known coefficient of friction will allow one to determine the pre-impact speed of the pitched ball. If the pitched 0.25 kg ball hits a stationary 3.20 kg box and the ball and box together slide a distance of 2.40 meters across a surface with a coefficient of friction of 0.20 before coming to rest, then what is the pre-impact speed of the pitched ball?

In a physics lab, the pitching speed of a student is determined by throwing a baseball into a box and observing the box's motion after the catch. A measurement of the distance the box slides across a rough surface of known coefficient of friction will allow one to determine the pre-impact speed of the pitched ball. If the pitched 0.25 kg ball hits a stationary 3.20 kg box and the ball and box together slide a distance of 2.40 meters across a surface with a coefficient of friction of 0.20 before coming to rest, then what is the pre-impact speed of the pitched ball?