An airplane flies due west at an airspeed of 421 mph. The wind blows in the direction of 42 south of west at 49 mph. What is the ground speed of the airplane? What is the bearing of the airplane? 421 mph 42 49 mph a. The ground speed of the airplane is b. The bearing of the airplane is 138 Submit Question mph. x south of west. Hint: For a detailed solution, see the example (Finding Resultant Velocity) in Section 2.1 (Vectors in The Plane).