Which aerodynamic force is typically associated with air resistance acting opposite the direction of motion?

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Multiple Choice

Which aerodynamic force is typically associated with air resistance acting opposite the direction of motion?

Explanation:
Drag is the aerodynamic force that resists the aircraft’s motion through the air and acts opposite the direction of travel. It arises from air friction against the surfaces and from pressure differences around the aircraft, and it increases with speed. Drag can be thought of as parasite drag (from the shape and surface) plus induced drag (related to producing lift). Thrust is what pushes the aircraft forward to overcome drag, lift supports weight by acting perpendicular to the flight path, and weight pulls downward due to gravity. The force described as air resistance opposing the motion is drag.

Drag is the aerodynamic force that resists the aircraft’s motion through the air and acts opposite the direction of travel. It arises from air friction against the surfaces and from pressure differences around the aircraft, and it increases with speed. Drag can be thought of as parasite drag (from the shape and surface) plus induced drag (related to producing lift). Thrust is what pushes the aircraft forward to overcome drag, lift supports weight by acting perpendicular to the flight path, and weight pulls downward due to gravity. The force described as air resistance opposing the motion is drag.

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