An airplane passes by overhead. The plane has a mass of 50,000 kg, is at an altitude of 10,000 meters and moves at a constant velocity of 150 m/sec. The altitude, velocity and direction of travel all are constant. Draw a free-body diagram of the airplane, including air drag. Identify as many forces as you can think of but do not try to calculate them.

An airplane passes by overhead. The plane has a mass of 50,000 kg, is at an altitude of 10,000 meters and moves at a constant velocity of 150 m/sec. The altitude, velocity and direction of travel all are constant. Draw a free-body diagram of the airplane, including air drag. Identify as many forces as you can think of but do not try to calculate them.