A flatbed rail car is moving at a slow but constant velocity. A man stands in the rail car, facing sideways (perpendicular) to the motion of the rail car. The man holds a baseball at arm’s length and drops it onto the rail car bed. Where does the principle of inertia predict that the ball will land: 

(a) Directly below the drop point on the rail car, 

(b) Slightly in front of the drop point on the rail car, or 

(c) Slightly behind the drop point on the rail car? Explain.