What is the force that slows the forward movement of air behind a wing in flight?

What is the force that slows the forward movement of air behind a wing in flight?

• A. Drag
• B. Dynamic
• C. Lift
• D. Aviation

Answer: (A)

Drag is the aerodynamic resistance that opposes the forward motion of an aircraft through the air. As the wing moves, it creates a wake behind it where air is slowed and pushed backward, producing a backward force on the aircraft and effectively slowing the air in its path. Lift, the upward force from pressure differences on the wing, is not this backward resistance. Dynamic isn't a force, and aviation refers to the field, not a force. So the force described is drag.

Drag is the aerodynamic resistance that opposes the forward motion of an aircraft through the air. As the wing moves, it creates a wake behind it where air is slowed and pushed backward, producing a backward force on the aircraft and effectively slowing the air in its path. Lift, the upward force from pressure differences on the wing, is not this backward resistance. Dynamic isn't a force, and aviation refers to the field, not a force. So the force described is drag.