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An aeroplane has to go from a point O to...

An aeroplane has to go from a point `O` to another point `A`, at distance `d` due `37^(@)` east of north. A wind is blowing due north at a speed of `20 m//s`. The air speed of the plane is `v`. (a) Find the direction in whihc the pilot should head the plane to reach the point `A`. (b) Find the time taken by the plane to go from `O` to `A`.

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