(A) What is the direction of the wind, i.e. the direction of the velocity of the air relative to the ground? (Give an angle in degrees measured from theaxis.)

Interactive Exercises 4.11: Relative Motion in Two Dimensions (Airship) below) depicts both reference frames. airship as observed from both frames. Observer in Frame A (Ground) Observer in Frame B (Air) Relative Motion in Two Dimensions and Airship Track. A powered airship is a controllable, lighter-than-air aircraft such as a blimp. An airship pilot wishes to fly from an airport at the origin of frame A, which is at rest relative to the ground, to another airport on the yA axis. Because of the wind, however, the task is not as simple as giving the aircraft a velocity relative to frame A that points in the +yA direction. Instead, the pilot must give the aircraft a velocity relative to the moving air such that the aircraft's path as observed in frame A, relative to the ground, is in the +yA direction. In this situation, the second reference frame-call it frame B-is at rest relative to the air. If the blimp turned off all its engines and was allowed to merely ride along with the wind, then the blimp would be at rest relative to frame B. This graphic depicts the motion of the airship as observed from both reference frames. Observer in Frame A (Ground) Observer in Frame B (Air) Relative Motion in Two Dimensions and Airship Track. A powered airship is a controllable, lighter-than-air aircraft such as a blimp. An airship pilot wishes to fly from an airport at the origin of frame A, which is at rest relative to the ground, to another airport on the yA axis. Because of the wind, however, the task is not as simple as giving the aircraft a velocity relative to frame A that points in the +yA direction. Instead, the pilot must give the aircraft a velocity relative to the moving air such that the aircraft's path as observed in frame A, relative to the ground, is in the +yA direction. In this situation, the second reference frame-call it frame B - is at rest relative to the air. If the blimp turned off all its engines and was allowed to merely ride along with the wind, then the blimp would be at rest relative to frame B. This graphic depicts the motion of the airship as observed from both reference frames. For the velocity components found in question 3 , what angle (less than 180 in absolute value) does the plane's velocity relative to the air make with the +yB axis? (If the angle is measured counterclockwise from the +yB axis, give a positive angle; if the angle is measured clockwise from the +yB axis, give a negative angle.) =