Specific Task Instructions:

Question $1(24)$

For the retaining wall shown, calculate the following for the active condition: $\backslash (\backslash$underline$\{15^\{\backslash$circ$\}\}\backslash )$ slope in backfill

$($i$)$ Horizontal stress at base of the wall in kPa

$($ii$)$ Total horizontal force in $\backslash (\backslash$mathrm$\{$kN$\}/\backslash$mathrm$\{$m$\}\backslash )$

$($iii$)$ Location of the total horizontal force from the base of the wall.