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PhysicsFluidBernoulli's theorem and applicationsMedium2 minQB

PhysicsMediuminteger

A horizontal pipeline carries water in a streamline flow. At a point along the pipe, where the cross-sectional area is $10 cm^{2}$ , the water velocity is $1 m / s$ and the pressure is 4000 Pa . The pressure of water at another point where the cross-sectional area is $5 cm^{2}$ , is..... Pa. (Density of water $= 1 0^{3} kg . m^{- 3}$ ).

Answer:

2500

Solution:

$A_{1} V_{1} = A_{2} V_{2}$

$10 \times 1 = 5 V_{2}$

$V_{2} = 2 m / s$

$P_{1} + \frac{1}{2} ρ V_{1}^{2} = P_{2} + \frac{1}{2} ρ V_{2}^{2}$

$4000 + \frac{1}{2} \times 1 0^{3} (1)^{2} = P_{2} + \frac{1}{2} \times 1000 (2)^{2}$

$P_{2} = 2500$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Bernoulli's theorem and applications

⏱ 2mℹ️ Source: QB

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