A fire truck supplies 150 gal/min of water to the third story of a building at B. If the friction loss through the 60- ft-long, 2.5-in.-diameter hose is 12 ft for every 100 ft of hose, determine the required pressure developed at the outlet A of the pump located within the truck close to the ground. Also, what is the average velocity of the water as it is ejected through a 1.25-in.-diameter nozzle at B? . 42 ft