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1. The problem statement, all variables and given/known data

A fireman climbs a 8 m high ladder carrying a

5 in diameter hose that has a 1.4 in diameter

nozzle. The pump has an absolute pressure of

4 atm.

What is the water velocity from the nozzle?

Assume that water is incompressible, its den-

sity is 1000 kg/m3 , and 1 inch = 0.0254 m.

The acceleration of gravity is 9.8 m/s2 and 1

atm = 1.01 × 105 Pa.

2. Relevant equations

bernoulli's equation

volume rate of flow

3. The attempt at a solution

ok so first i found the area by converting and doing pie and all that stuff. so after i found A1 and A2, i put A2/A1 which is = to v2/v1 so that means v1 = A2/A1 * v2. with this said its time to plug into bernoulli's equation. P1 + 1/2pv1^2 = P2 + 1/2pv2^2 + pgh.

P1 = given, just convert atm into Pa

v1 i plugged into equation

p = 1000 since its water

P2 = atmopheric pressure im guessing

h = 8m

i plugged everything in but i got it wrong T_T

i only have 3 other questions besides this one so ill post them as a reply later.

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# Homework Help: Fluid problems - pipe like questions

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