A car of mass 1400kg moving south at 11m/s collides into another car of mass 1800kg moving east at 30m/s.The cars are stock together after the collision.Determine the velocity of the cars immediately after the collision.

Answer 1

Do a vector sum of the two momentums, then set that equal to (m1+m2)vf
you'll have to do a tan-1 for the direction