A plane with a still air speed of 250 km/h is flying due NorthWest. At the same time a wind is blowing toward the South at 50 km/h. In what direction should the pilot head to continue travelling due North West? (The plane must continue with a 250 km/h velocity) My Answer: Velocity of plane (Vp) = 250 Velocity of wind (Vw) = 50 sin y = y/x = 50/250 y = 11.5 degrees 90 degrees - 11.5 degrees = 78.5 degrees The plane must head 78.5 degrees N of W to continue in a 45 degree N of W line. Is this correct? Any help is much appreciated.