an airplane has a mass of 20 x 106 kg and is traveling throu
an airplane has a mass of 2.0 x 10^6 kg and is traveling through the air at 100m/s. If the wings have a surface area of 1200m^2, how much faster must the air flow over the upper surface of the wing if the wings are to provide lift equal to the weight of the plane? Report your answer as a percentage of the aircrafts speed. Consider the Bernoulli effect.
Solution
mg = F trust = density of air)*(A)*V^2
=> 2*10^6*9.8 = 1.225*1200*v^2
=> V = sqrt ( (2*10^6*9.8)/(1.225*1200)) = 115.47 m/s
