The cross section of a concrete dam is shown in the figure. Consider a 1-ft-wide section of the dam and take h=14.5 ft. Given, the specific weight of the fresh water, y = 62.4 lb/ft3 and the specific weight of concrete. Vc=150 lb/ft A 9 ft 6 ft 6 ft 1616 C B The resultant of the pressure forces is 18 ft Determine the resultant of the pressure forces exerted by the water on the face BC of the dam. (You must provide an answer before moving on to the next part.) kips: (Click to select) (Click to select) 2 g