Formulas: 1. momentum (p) = mAv 2. total velocity after = mlivli + m2, v2i mi + m2 3. impulse (J) = Ft 4. impulse-momentum theorem J or Ft = mAv 4. Railroad Car A, with mass 6275 [kg], is travelling east at 6.5 [m/s] along a 3 points straight track. It strikes Railroad Car B, with mass 5155 [kg], which is also travelling east along the same track at 3.8 [m/s]. The two railroad cars stick together. Assume the track is frictionless, WHAT is the COMBINED VELOCITY of the two attached railroad cars AFTER the collision? Apply the Law of Conservation of Momentum (2 pts formula and solution, 1 pt final answer) Your