You are standing on the ground at the origin of a coordinate system. An airplane flies over you with constant velocity parallel to the x axis and at a constant height of 7.05 103 m. At t = 0, the airplane is directly above you so that the vector leading from you to it is 0 = 7.05 103 m. At t = 30.0 s the position vector leading from you to the airplane is 30 = (7.18 103 + 7.05 103) m as suggested in the figure below. Determine the magnitude and orientation of the airplane's position vector at t = 55.0 s. magnitude m direction ° above the horizontal.