Lift force on an airplane wing

The air above an airplane wing travels at $200 \text{ m/s}$, while the air below it travels only $180 \text{ m/s}$. Find the magnitude of the lift force if the density of air is $\rho = 1.29 \text{ kg/m}^3$和机翼的面积 $= 2 \文本{m}$.

Assume the height of the wing is negligible.