CONTINUITY EQUATION Fluid Flow P 30  feet 62.4^lbm ft³ 30  ft 32.17 ft sec² 32.17 lbm  ft lbf  sec² 1872^lbf ft² 1  ft² 144  in² 13.00 lbf in² Example 2: A cylindrical water tank 40 ft high and 20 ft in diameter is filled with water that has a density of 61.9 lbm/ft³. (a) What is the water pressure on the bottom of the tank? (b) What is the average force on the bottom? Solution: (a) P r  h  g g_c P 61.9^lbm ft³ 40  ft 32.17 ft sec² 32.17 lbm  ft lbf  sec² 2476^lbf ft² 1  ft² 144  in² 17.2 lbf in² HT-03 Page 6 Rev. 0