Posted by mikey on Tuesday, November 27, 2012 at 1:00pm.
A plane is headed due west with an air speed of 300 mph. The wind is from the north at 80 mph. Find the bearing for the course and the ground speed of the plane.

trigonometry  Steve, Tuesday, November 27, 2012 at 2:24pm
ground speed = √(300^2+80^2) = 20√241 = 310.48 mph
bearing = arctan(80/300) = 255.1° = W14.9°S

trigonometry  mikey, Tuesday, November 27, 2012 at 2:37pm
steve, you are the man! i wish i had your brain.

trigonometry  Steve, Tuesday, November 27, 2012 at 2:39pm
hang in there. after you have done as many of these as I have, they'll be a cinch!
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