1. The rock-filled concrete multi-purpose dam was built for the use on water supply, irrigation, and flood control. The 45° side of the dam holds the water reservoir, and its water surface reaches A-A. Consider 1-m width for the analysis. a. Determine the force of water along the x-direction in KN. b. Determine the force of water along the y-direction in kN. c. Determine the resultant force on the 45° side of the dam in kN. d. Considering the 30° side of the dam instead of the 45° side, determine the resultant force in KM f 15m Ism 45

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Graphical Methods

The graphical method is a method of solving equations involving more than one variable using the Cartesian coordinate system. In civil engineering, the use of the graphical method is limited to the problems involving two variables. The graphical method has a great impact in solving the questions regarding engineering mechanics.