The pilot of an aircraft wishes to fly due west in a 61 km/h wind blowing toward the south. The speed of the aircraft relative to the air is 120 km/h.

A. In what direction should the aircraft head? Answer in degrees from due East, with
counterclockwise positive, within the limits of −180◦ to 180◦ Answer in units of ◦.

B. What will be its speed relative to the ground?
Answer in units of km/h.