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  4. An incompressible fluid flows steadily through a cylindrical pipe which has radius 4 R at point A and radius R at point B farther from the point A in the direction of flow of water. If the velocity at point A is 5 m / s then velocity at B is

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Q. An incompressible fluid flows steadily through a cylindrical pipe which has radius $4 R$ at point $A$ and radius $R$ at point $B$ farther from the point $A$ in the direction of flow of water. If the velocity at point $A$ is $5 m / s$ then velocity at $B$ is

Mechanical Properties of Fluids

Solution:

From equation of continuity
$V _{ B } \pi R _{ B }^{2}=\pi(4 R )^{2} 5$
$V _{ B }=80 m / s$