1. The problem statement, all variables and given/known data http://img90.imageshack.us/img90/2456/planeqc1.th.jpg [Broken] This is the question. 2. Relevant equations I am unsure how to relate the velocity of the plane to the angular velocity. 3. The attempt at a solution I calculated r to be 11 540m. Therefore the distance in the i direction from the satellite must be 5770m and the distance in the j direction 10 000m. However when I try to calculate velocity of the plane using Vp = Vs + W*R (where W is angular velocity and R is distance from the plane to the satellite) I get an answer in terms of i and j even though I know there shouldn't be any velocity in the j direction. What am I doing wrong?