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Water flows through a horizontal pipe of variable cross section. The pressure is 1cm of mercury column when the velocity 35cms-1 . Find the pressure at a point where the velocity is 60cms-1 .

pls answer the question with the same values , don'thyperlink a sum of the same kind.

Thank u sooo much

Dear Student,

Apply Bernoulli's Theorem

Since pipe is at same horizontal level

Given That *P*_{1} = 0.01 m of Hg = 1333.2 Pa

*v*_{1} = 0.35 m/s

*v*_{2 }= 0.6m/s

*P*_{2 }= ?

ρ = 1000 kg/m^{3}

1333.2 + 0.5 × 1000 (0.35)^{2} = *P*_{2} + 0.5 × 1000 (0.6)^{2}

1333.2 + 61.25 = *P*_{2} + 180

⇒ *P*_{2}^{ }= 1214.45 Pa

here 1cm of Hg =1333.2Pa

so 1Pa=1/1333.2 cm of Hg

1214.45pa=1214.45/1333.2cm of Hg

=.91cm of mercury

Regards

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