Using dimensional analysis, find the relationship between the frictional force

$$

F$,$ flow velocity

$$

U$,$ plate length

$$

L$,$ fluid density

$$

$\backslash$rho $,$ and fluid viscosity

$$

$\backslash$mu $.$

In a model with a scale of $1/5$ of the prototype, a force of $20$ N was measured. What force is expected to be measured in the prototype when the fluid in the prototype is also water?