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Free testmediumdrag
Induced drag is caused by:
A
Surface roughness
B
Wingtip vortices deflecting the local airflow, tilting the lift vector rearward
C
Shock waves on the wing
D
Engine nacelle interference
B
Wingtip vortices deflecting the local airflow, tilting the lift vector rearward✓ Correct Answer
Explanation
Wingtip vortices create downwash that tilts the local relative airflow downward, causing the lift vector to tilt aft — its rearward component is induced drag.
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