CHAPTER 4 – FORCES DUE TO STATIC FLUIDS
4.41) A rectangular gate is installed in a vertical wall of a reservoir, as shown in Fig. 4.26. Compute
the magnitude of the resultant force on the gate and the location of the center of pressure. Also
compute the force on each of the two latches shown.
4.21) For each of the cases shown in Figs. 4.30-4.41, compute the magnitude of the resultant force
on the indicated area and the location of the center of pressure. Show the resultant force on the
area and clearly dimension its location.
4.40) Figure 4.44 shows a rectangular gate holding water behind it. If the water is 6.00 ft deep,
compute the magnitude and location of the resultant force on the gate. Then compute the forces on
the hinge at the top and on the stop at the bottom.
4.43) Repeat Problem 4.19 (Fig. 4.31), except that the tank is now sealed at the top with a pressure
of 13.8 kPa above the oil.
4.55) Repeat Problem 4.47 using Fig. 4.47, except that there is now 7.50 kPa air pressure above
the fluid.