The Navier$-$Stokes equation is as follows:Using the dimensionless quantity of $,$Dimensionally, $(1)$ dimensionless Navier$-$number including Strouhal number $($St$),$ Euler number $($Eu$),$ Reynolds number $($Re$),$ and Froude number $($Fr$)$Obtain the Stokes equation $(2)$ and from this, the dimensionless Navier$-$Stokes equation for when the Froude number $($Fr$)$ is very largeDerive $(20$ points$)$