The air flow changes direction as it passes the airfoil and follows a path that is curved downward. According to Newton 's second law, this change in flow direction requires a downward force applied to the air by the airfoil. Then, according to Newton 's third law, the air must exert an upward force on the airfoil. The overall result is that a reaction force, the lift, is generated opposite to the directional change. In the case of an airplane wing, the wing exerts a downward force on the air and the air exerts an upward force on the wing.
how does a plane wing create lift which physics concept applies
force force force force force wing exerts a downward force on the air and the air exerts an upward force on the wing