Asked by Saraa
Find the bearing and airspeed for a plane to fly 630 miles due north in 3 hours if the wind is blowing from a direction of 318* and is blowing
Answers
Answered by
oobleck
bearing from where? Oh, you must mean heeding.
Oh, and you need to fill in he wind speed. Say it is w. Then you need a resutant speed of 210 mi/hr due north.
Draw the diagram.
So, if the plane's speed is v, then
v^2 = 120^2 + w^2 - 2*120w cos 138°
Then the heading is nθW where sinθ/w = v/sin138°
Oh, and you need to fill in he wind speed. Say it is w. Then you need a resutant speed of 210 mi/hr due north.
Draw the diagram.
So, if the plane's speed is v, then
v^2 = 120^2 + w^2 - 2*120w cos 138°
Then the heading is nθW where sinθ/w = v/sin138°
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