1. A 4100-kg truck traveling with a velocity of 13 m/s due north collides head-on with a 1300-kg car traveling with a velocity of30 m/s due south. The two vehicles stick together after the collision.
(a) What is the momentum of each vehicle prior to the collision?
truck magnitude
truck direction
car magnitude
car direction
(b) What are the size and direction of the total momentum of the two vehicles after they collide?
magnitude
direction