A car traveling east and a minivan traveling south collide in a completely inelastic collision at a perpendicular intersection. If the initial speed of the 1200kg car was 80.0 km/h and the initial speed of the 2500 kg minivan was 58.0 km/h, what is the speed of the vehicles immediately after collision (in m/s). What is the direction of the velocity of the vehicles immediately after collision?