1. The problem statement, all variables and given/known data An airplane has a velocity 325km/h relative to the air. It is going in a direction [S30W]. There is a wind velocity of 80km/h[W]. What is the velocity of the plane relative to the ground? 2. Relevant equations aVg + pVa = pVg (velocity of air relative to ground + velocity of plane relative to air = velocity of plane relative to ground) 3. The attempt at a solution pVa = 325km/h and aVg = 80km/h [W] and pVg = ? [S30W] correct? i know pVg^2 = aVg^2 + pVa^2 but, i'm not getting the number i'm supposed to?