A cylindrical silo, $3 \mathrm{~m}$ in diameter and $20 \mathrm{~m}$ high, is filled with barley having bulk density of $625 \mathrm{~kg} \mathrm{~m}^{-3}$. Coefficient of friction between grain and the bin wall is 0.45 and the ratio of lateral pressure to vertical pressure is 0.4 . The lateral pressure at the base of the bin in $\mathrm{kPa}$ will be___________
A cylindrical silo, $3 \mathrm{~m}$ in diameter and $20 \mathrm{~m}$ high, is filled with barley having bulk density of $625 \mathrm{~kg} \mathrm{~m}^{-3}$. Coefficient of friction between grain and the bin wall is 0.45 and the ratio of lateral pressure to vertical pressure is 0.4 . The lateral pressure at the base of the bin in $\mathrm{kPa}$ will be___________