The driver of a Mini Cooper (mass 1200 kg) is traveling at 10 m/s westward when he runs a stop sign and collides with a Toyota Camry (mass 2000 kg), traveling at 15 m/s northward. The two cars stick together after the collision.
A) What is the total momentum before the collision? (Will your answer be one value or two? Why?)
B) What is the total momentum after the collision?
C) What are the speed and direction of the cars after the collision?