The air surrounding an airplane in flight exerts a drag force that acts opposite to the airplane's motion. When an Airbus A380 is flying in a straight line at a constant altitude at a constant 250 m/s, each of the four jet engines on the Airbus A380 develops a thrust force of 322,000 N. What is the rate at which the drag force does work on the Airbus A380? Note: one horsepower (hp) is 764 W.