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acidandroid
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Homework Statement
Assume a liquid is flowing through a pipe of cross-sectional area A at pressure P and velocity v. If, at some point, the area decreases, then;
-velocity increase, pressure remains same
-velocity increases, pressure decreases
-velocity increases, pressure increases
correct answer is Velocity increases, and pressure P decreases.
Homework Equations
-p1v1A1=p2v2A2
-Pressure=Force/Area
The Attempt at a Solution
-I understand that velocity increases because p(density)v(velocity)A(area).
But I don't understand why pressure would decrease.
I used Pressure=Force/Area, thus if area decreases, pressure must increase.