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March 29, 2017

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An airplane flies due north at 220 km/h with respect to the air. There is a wind blowing at 65 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground?

  • Physics - ,

    Pg=Pa+Ag

    = 220N+65NE=220N+65*.707N+65*.707E
    = 220N+46N+46E=266N+46E

    = sqrt(266^2+46^2) speed, direction = arctan46/366 E of N

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