(Solved): The section through a long cofferdam is shown in the figure. The coefficient of permeability of ...

The section through a long cofferdam is shown in the figure. The coefficient of permeability of the soil is $\frac{3}{10000000}\mathrm{m}/\sec$. $(\mathrm{d}=2\mathrm{m})$ a) Determine the quantity of seepage entering the cofferdam in ${\mathrm{m}}^{?}3/\sec /\mathrm{m}$. b) Calculate the water pressure in $\mathrm{kPa}$ at point $\mathrm{C}$ located $5\mathrm{m}$ above the impermeable bedrock. (from Craig's soil mechanics)