An airplane having a speed relative to the air of 250 km/h needs to land in a city north of the departure airport when the wind blows toward the east at 40 km/h. The pilot should maintain a heading of
A) 79.9°.
B) 10.1°.
C) 0°.
D) 10.2°.
E) 79.8°.

Question

Quizplus · Accepted Answer

To counteract the eastward wind and maintain a northward path, the pilot must head slightly west of north. Using vector addition and trigonometry, the angle is approximately 10.1° west of north.

An Airplane Having a Speed Relative to the Air of 250