Two particles approach each other with equal and opposite speed, 0. The mass of one particle is m, and the mass of the other particle is run, where n is just a constant factor. Snapshots of the system before, during, and after the elastic collision are shown. Before Collision After m +-+ am - --'-'( m -----'( mm + V V It'mJiIIal mmlinal After the collision, the rst particle moves in the exact opposite direction with speed 1.85 v, and the speed of the second particle, Unm'na], is unknown. What is the value of n