Let so consider liquid of
thickens de at height \(x\)
below the surface
\(P = pgx\)
\(\int p _{ mt }= P _{ Total }=\int_0^{ H } pgx ( dx )\)
\(p _{ mt }= pg \frac{ x ^2}{2} I _0^{ H }\)
\(p _{ mt }=\frac{ pgH ^2}{2}\)
\(p _{ avg }=\frac{ p _{ mt }}{ H }=\frac{ pgH }{2}\)
(પાણીનો શ્યાનતા અંક $=10^{-2} \,Pa . s$ છે.)