Problem: A quarterback takes the ball from the line of scrimmage, runs backwards for 15.0 yards, and then runs sideways parallel to the line of scrimmage for 11.0 yards. At this point, he throws a 48.0 yard forward pass straight downfield, perpendicular to the line of scrimmage.
Part A: What is the magnitude of the football's resultant displacement?
_______ Yards
I need help to find the magnitude of the football's resultant displacement.