The curved upper surface of an aerofoil of the wing of an airplane or a bird is critical in generating
A)drag.
B)lift.
C)angular momentum.
D)thrust.

Question

Quizplus · Accepted Answer

The curved upper surface of the aerofoil, also known as camber, is critical in generating lift. As air moves over the curved surface, it must travel a longer distance over the upper surface compared to the straighter lower surface, causing a difference in air pressure and generating lift. Drag is generated due to air resistance, angular momentum is a property of rotating objects, and thrust is produced by engines or propellers, not by the shape of the aerofoil.

The Curved Upper Surface of an Aerofoil of the Wing