A fireman standing on a 13 m high ladder operates a water hose with a round nozzle of diameter 2.17 inch. The lower end of the hose (13 m below the nozzle) is connected to the pump outlet of diameter 2.72 inch. The gauge pressure of the water at the pump is P (gauge) pump = P (abs) pump − Patm = 59.2 PSI = 408.17 kPa. Calculate the speed of the water jet emerging from the nozzle. Assume that water is an incompressible liquid of density 1000 kg/m3 and negligible viscosity. The acceleration of gravity is 9.8 m/s2. Answer in units of m/s.

A fireman standing on a 13 m high ladder operates a water hose with a round nozzle of diameter 2.17 inch. The lower end of the hose (13 m below the nozzle) is connected to the pump outlet of diameter 2.72 inch. The gauge pressure of the water at the pump is P (gauge) pump = P (abs) pump − Patm = 59.2 PSI = 408.17 kPa. Calculate the speed of the water jet emerging from the nozzle. Assume that water is an incompressible liquid of density 1000 kg/m3 and negligible viscosity. The acceleration of gravity is 9.8 m/s2. Answer in units of m/s.