Problem: A 2,200-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 45.0° north of east and at a speed of 5.98 m/s.
Part A: Find the speed of the 3,000-kg car before the collision.
I need help to calculate the speed of the 3,000-kg car before the collision.