Question

You are on the 48th floor of the Windom Hotel. The day is stormy, and you wonder whether the hotel is a safe place. The size of your room window is 0.80 m × 2.4 m . According to the weather report, gusts of up to 25 m/s are expected. Assume that such a gust suddenly blows by your window (parallel to the window), and that the pressure on both sides of the window is 1 atm before the gust. What is the difference in pressure on the outside of the window before and after the gust.? Assume the flow of the wind gust to be laminar (non-turbulent) and non-viscous. The density of air is 1.30 kg/m3. What is the magnitude of the net force that the gust exerts on the window?

Answer 1