Question

2.CALCULATE THE PRESSURE NEEDED FOR THE PUMP OF A 3 CM RADIUS FIRE HOSE TO PUMP WATER THROUGH ITS NOZZLE OF RADIUS 2 CM AT AN AVERAGE SPEED OF 4 METER PER SECOND WHEN THE NOZZLE IS 15 METER ABOVE THE FIRE TRACK.

Answer 1

Step-by-step explanation:

1. P1​+½(1000kg/m3)(4m/s)2+(1000kg/m3)(9.81m/s2)(0m)=P2​+½(1000kg/m3)(4m/s)2+(1000kg/m3)(9.81m/s2)(15m)

2.P1​+2000Pa=P2​+2000Pa+147150Pa

Answer- P1​ = P2​+147150Pa