An object (A) of mass ma = 28.5 kg is moving in a direction that makes angle of 30 south of east with a speed VA = 4.95 m/s, while object (B) of mass mB = 17.5 kg is moving due south with a speed VB = 7.80 m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two-object system after the collision.