1. The air transport B is flying with a constant speed of 480 mi/hr in a horizontal arc of 9 mi radius. When B reaches the position shown, aircraft A, flying south west at a constant speed of 360 mi/hr, crosses the radial line from B to the center of curvature C of its path. Write the vector expression, using the x- y axes attached to B, for the velocity and acceleration of A as measures by an observer in and turning with B. N 5 mi