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March 24, 2017

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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 - ,

    ground speed = √(300^2+80^2) = 20√241 = 310.48 mph

    bearing = arctan(-80/-300) = 255.1° = W14.9°S

  • trigonometry - ,

    steve, you are the man! i wish i had your brain.

  • trigonometry - ,

    hang in there. after you have done as many of these as I have, they'll be a cinch!

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