A wind with speed 40 m/s blows parallel to the roof of a

Last updated: 7/9/2022

A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250m². Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the fore will be: (ρair = 1.2kg/m³) A. 4.8 x 10⁵ N, upwards B. 2.4 x 10⁵ N,upwards C. 2.4 x 10⁵ N, downwards D. 4.8 x 10⁵ N,downwards