# Velocity ratio

Determine the ratio at which the fluid velocity in different parts of the pipeline (one part has a diameter of 5 cm and the other has a diameter of 3 cm), when you know that at every point of the liquid is the product of the area of tube [S] and the fluid velocity [v] the same.

Correct result:

v1:v2 =  0.36

#### Solution:

$v_1:v_2=(3 \cdot \ 3)/(5 \cdot \ 5)=\dfrac{ 9 }{ 25 }=0.36$

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