The underside of the wings of an airplane have a total surface area of 200 m ^2 . While on flight, the pressure on the upper surface of the wings is 3% less than that of atmospheric pressure. (Take atmospheric pressure =1 atm =10 ^5 Pa.) 1) What is the difference in pressure between the upper and lower surfaces of the wings assuming that the lower surface of the wings are at atmosperic pressure? Pascols. ΔP= 2) Calculate the magnitude of the lift force that acts to push the airplane upward. F lift =