After a severe rainstorm, the flat roof of the building shown in Fig. (a) is covered by 75mm of rainwater. The specific weight of water is 10,000 N/m3, so water at a depth of 75mm causes a uniform pressure of 10,000(75/1000)=750 N/m². Determine the resultant force that the water exerts on the roof. 750 N/m² on roof -37.5 m² (a) 40m-40m-

After a severe rainstorm, the flat roof of the building shown in Fig. (a) is covered by 75mm of rainwater. The specific weight of water is 10,000 N/m3, so water at a depth of 75mm causes a uniform pressure of 10,000(75/1000)=750 N/m². Determine the resultant force that the water exerts on the roof. 750 N/m² on roof -37.5 m² (a) 40m-40m-