SOLUTION: An airplane is heading north at an airspeed of 750 km/hr, but there is a wind blowing from the northwest at 70 km/hr. The plane will end up flying (answer) degrees off cour

Question 1150168: An airplane is heading north at an airspeed of 750 km/hr, but there is a wind blowing from the northwest at 70 km/hr.
The plane will end up flying
(answer) degrees off course
The plane's speed relative to the ground will be
(answer) km/hr
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
An airplane is heading north at an airspeed of 750 km/hr, but there is a wind blowing from the northwest at 70 km/hr.
The plane will end up flying
(answer) degrees off course
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It's not necessarily "off course" as no course was stated.
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to find the ground track:
It's a triangle.
One side is on the y-axis from (0,0) to (750,0)
The 2nd side is from (750,0) at an interior angle 45 degs and length of 70.
----
The groundspeed is the 3rd side.
Use the Cosine Law.
===========================
Use the Law of Sines to find the angle at (0,0).
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