Suppose you are going to prepare a fire safety plan for the

building that you live in. NFPA standards require a Type 3

engine to have a minimum of a 500-gallon water tank and a

pump capable of a minimum of 150 US gallons per minute.

Solve Concept Problem

1. Estimate the pressure needed at the pumper truck in order to

shoot water from the street level onto a fire on the roof of the

building if the velocity of the water is 7 m/s at the roof.

2. List all assumptions including the building height, water hose

dimension, etc., and show all calculations.

3. Discuss your findings with your classmates.