A tank is filled by liquid of density $\rho$ upto height $H$. The average pressure on the walls of container is .....
Medium
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(b)
Let so consider liquid of
thickens de at height $x$
below the surface
$P = pgx$
$\int p _{ mt }= P _{ Total }=\int_0^{ H } pgx ( dx )$
$p _{ mt }= pg \frac{ x ^2}{2} I _0^{ H }$
$p _{ mt }=\frac{ pgH ^2}{2}$
$p _{ avg }=\frac{ p _{ mt }}{ H }=\frac{ pgH }{2}$
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