Question
Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 mi/h) when the jet stream descends during early spring. Approximately what is the force due to the Bernoulli effect on a roof having an area of $220 \textrm{ m}^2$? Typical air density in Boulder is $1.14 \textrm{ kg/m}^3$, and the corresponding atmospheric pressure is $8.89 \times 10^4 \textrm{ N/m}^2$. (Bernoulli's principle as stated in the text assumes laminar flow. Using the principle here produces only an approximate result, because there is significant turbulence.)

$2.54 \times 10^5 \textrm{ N}$

Solution Video