1. The problem statement, all variables and given/known data An aircraft has a cruising speed of 100 m/s. On this particular day, a wind is blowing from the west at 75 m/s. If the pilot wishes to have a resultant direction of due north, in what direction should the plane be pointed? What will be the plane displacement in 1.25 h? 2. Relevant equations 3. The attempt at a solution I answered the other two parts of the question asking for the total displacement and velocity relative to the air or something. Where do I start with this? I know it has to do with polar positives but my textbook has no examples.