Compute all parts of given question:
Question: A 950-kg car traveling west at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together.
Part A: What is the speed of the wreckage just after the collision?
Part B: In what direction does the wreckage move after the collision?
I need help to find the speed of the wreckage just after the collision.