A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is wide

The fluid velocity is 8.0m/s. Where it is narrow the fluid velocity is:

4 answers

According to the continuity equation (also known as "what goes in must come out"), Area * Velocity is a constant.

The area is reduced by a factor of 4.

So the velocity must increase by the same factor.
what equation do i use to figure that out?
V*A = constant.

It is a "steady state" equation
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