Drag is the aerodynamic force that opposes an aircraft's motion through the air. ... If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. There must be motion between the object and the fluid.
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Drag is the aerodynamic force that opposes an aircraft's motion through the air. ... If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. There must be motion between the object and the fluid.
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drag, force exerted by a fluid stream on any obstacle in its path or felt by an object moving through a fluid.
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