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The speed of an airplane in still air is 200 mi/h. It is desired to go from O to O´, the direction OO´ being N20°W. The wind is 30 mi/h in the direction N40°E. Find the direction in which the plane is headed and its resultant velocity
11) The speed of an airplane in still air is 200 mi/h. It is desired to go from O to O´, the direction OO´ being N20°W. The wind is 30 mi/h in the direction N40°E. Find the direction in which the plane is headed and its resultant velocity.

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