Water flows through a nozzle at the end of a fire hose. If the nozzle exit velocity must be 20 m/s and the exit diameter is 40 mm, determine the minimum flow rate that the pump must provide.

Respuesta :

Answer:

minimum flow rate provided by pump is 0.02513 m^3/s

Explanation:

Given data:

Exit velocity of nozzle = 20m/s

Exit diameter = 40 mm

We know that flow rate Q is given as

[tex]Q = A \times V[/tex]

where A is Area

[tex]A =\frac{\pi}{4} \times (40\times 10^{-3})^2 = 1.256\times 10^{-3} m^2[/tex]

[tex]Q = 1.256\times 10^{-3} \times 20 = 0.02513 m^3/s[/tex]

minimum flow rate provided by pump is 0.02513 m^3/s