A car of mass 1000 kg is heading east at 25 m/s. It collides with a car of mass 1200 kg heading north at 30 m/s. When the cars collide, they stick together. a. What is the total momentum of the system before the collision? Remember that momentum is a vector quantity, and write the momentum in component notation, with x and y unit vectors. (1 point)

b. What is the total momentum of the system after the collision? Write the momentum in component notation, with x and y unit vectors. (1 point)

c. What is the velocity of the cars after the collision? Write the velocity in component notation, with x and y unit vectors. (1 point)

d. At what angle do the cars move after the collision? (1 point)