1. The problem statement, all variables and given/known data A Boeing is flying east at 150 km/hr, After 2 hours it is 350 km East and 74 km south of its starting point. What is the magnitude and direction of the wind velocity? 2. Relevant equations Not sure if any 3. The attempt at a solution Well I really had no idea what to do so i started by finding the resultant vector of the distance after 2 hours, which came out to be 357.8 KM at -.00369 degrees... My guess is that since I found this, I could make a vector for 150 km/h, and a vector for 357.8 km and the resultant of that would be the Wind velocity vector, to get the angle and then use law of cosines, i would add 180 to the -.00369 degrees and then go forward with law of cosines.. I also just converted the new displacements given to velocities, using V = d/t to get a resultant of 178.4 km/h with the same angle Does this sound right or just absolutely absurd.. I hate relative velocity problems with a passion so if anyone can explain them briefly in general it'd be very much appreciated.