A hurricane is blowing on a long "Quonset hut," that is, a long half-cylinder cylindrical cross-section building, 6 m in diameter. If the velocity far Upstream is U infinity = 40 m/s and P infinity = 1.003 X 105 N/ m, P infinity = 1.23 kg/m3 , find the force per unit depth of the building, assuming the pressure inside is p infinity.