PROBLEM: A uniform diving board, of length 5.46 m and mass 53.8 kg, is supported at two points: one support is located at L1 = 3.46 m from the end of the board, and the second is at 4.87 m from the end of the board. As shown in the figure below, L2 = 1.41 m. What is the force acting on the board due to the left support when a diver of mass 69.5 kg stands at the end of the board over the water?