An airplane pilot wishes to fly due west. A wind of80.0 km/h (about 50 mi/h) is blowing toward the south.
(a) If the airspeed of the plane (its speed in still air) is 320.0 km/h (about 200 mi/h), in which direction should the pilot head?
(b) What is the speed of the plane over the ground? Illustrate with a vector diagram.