Question: An airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 28° south of east. Its direction of motion relative to the earth is 45° south of west, while its direction of travel relative to the air is 10° south of west.
(a) What is the airplane's speed relative to the air mass? Correct: Your answer is correct.
(b) What is the airplane's speed relative to the earth?