A fluid is flowing through a horizontal pipe of varying cross-section, with
speed v ms–1 at a point
where the pressure is P pascal. At another point where pressure is ${P \over 2}$
Pascal its speed is V ms–1. If
the density of the fluid is $\rho$ kg m–3 and the flow is streamline, then V is equal to :
Solution
From Bernoulli's equation,
<br><br>P + ${1 \over 2}\rho {v^2}$ = ${P \over 2} + {1 \over 2}\rho {V^2}$
<br><br>$\Rightarrow$ V = $\sqrt {{P \over \rho } + {v^2}}$
About this question
Subject: Physics · Chapter: Properties of Solids and Liquids · Topic: Elasticity
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