Initially, mass 1 (m1) approaches mass 2 (m2) with speed v1. Mass 2 is initially at rest. Mass 1 and mass 2 then undergo an elastic collision in 1D. V1 1 2 V = 0 (a) Solve for the final velocities of mass 1 and mass 2, vf1 and vf2, respectively. (b) Consider the case of a water molecule colliding with a stationary Lysozyme protein molecule. The mass of the water molecule is m1 = 3 10^(-26) kg, and the mass of the protein is m2 = 2.3 10^(-23) kg. The initial speed of the water molecule is v1 = 640 m/s. Use your general result from part (a) to solve for the final speeds, vf1 and vf2, of each molecule.