A window in a skyscraper has a surface area of 3.50 m2. Wind rushes by the outside of the window at 17.4 m/s, while inside the air is stationary. What is the TOTAL force acting on the window?

Answer 1

Using Bernoulli's Theorem

1/2 V1² +P1/d = 1/2V2² +P2/d

V1 = 17.4

V2 =0

1 /2 V1² = Pressure Difference / d

Where d = Density of air

Pressure Difference =( 1/2 V1²) Density of air

Pressure Difference = 369.36

Force = Pressure difference * area = 369.36 *3.5 = 1292.8 N