Question

Air of density 1.15 kg/m^3 flows over a plane's wing at 111.0 m/s and below the wing at 81.0 m/s. If the area of the wing is 115,0 m*2 what is the upward force (dynamic lift) on the plane's wing?

Answer 1

The upward force or dynamic lift on the plane's wing is 81087.75 N.

Step-by-step explanation:

The upward force or dynamic lift on the plane's wing can be calculated using the Bernoulli's principle.

The formula to calculate the dynamic lift is:

Dynamic Lift = 0.5 * air density * wing area * (velocity above wing - velocity below wing)2

Plugging in the values for the given question:

Dynamic Lift = 0.5 * 1.15 kg/m3 * 115.0 m2 * (111.0 m/s - 81.0 m/s)2 = 81087.75 N