Water is fed through a f1ie hose from an open water tank located some distance from the building where the fire is to be extinguished, as shown in Figure P5.58. The water level in the tank is 20 ft...

Water is fed through a f1ie hose from an open water tank located some distance from the building where the fire is to be extinguished, as shown in Figure P5.58. The water level in the tank is 20 ft above the invert of the floor, which is on fire. The nozzle of the hose is initially 12 inches tapering to a final diameter of 3 inches. If the flow rate is 1 cfs and there is 8 feet of head loss from the tank to the fire, what is the force required to hold the nozzle still? Ignore losses in the nozzle.