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a jet of water at a speed of 18 m/s. Fin...

a jet of water at a speed of 18 m/s. Find the excess pressure in the fire-hose, the diameter of which is 6 cm. 

Text Solution

Verified by Experts

The correct Answer is:
`1.6 xx10^5 Pa = 1.58 atm `
Apply the Bernoulli equation for an incompressible fluid:
`Delta p = 1/2 rho v_2^2 - 1/2 rho v_1^2`
The velocity of fluid in the fire-hose may be found from the continuity equation.
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