For the arrangement shown below, water flows down through a soil column to a reservoir below. The water levels over the soil column and in the reservoir are maintained at a constant level. The soil column consists of two soils $-$ Soil $1$ and Soil $2$ with coefficients of permeability of $0\mathrm{.}01$ and $\backslash (0\mathrm{.}04\backslash$mathrm$\{$~cm$\}/\backslash$mathrm$\{$sec$\}\backslash ).$ The cross$-$sectional area of the soil column is $100\backslash (\backslash$mathrm$\{$cm$\}^\{2\}\backslash ).$

What is the rate of flow through the soil column in $\backslash (\backslash$mathrm$\{$cm$\}^\{3\}/\backslash$mathrm$\{$sec$\}\backslash )$

What is the pore water pressure at point A in KPa