In order to quadruple the amount of lift created by an airfoil, the air velocity must be doubled.
What is airfoil?
A wing, a sail, or the blades of a propeller, rotor, or turbine are examples of objects whose motion through a gas can provide significant lift, and an airfoil or aerofoil is the cross-sectional shape of such an item.
By applying a downward push to the air as it passes, an airfoil produces lift. The air must exert an equal and opposite (upward) force on the airfoil, which produces lift, in accordance with Newton's third law.
To learn more about Newton's third law click on the link below:
https://brainly.com/question/23772134
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