$(30\%)$ A certain column carries a vertical downward load of $263k\frac{N}{m}.$ It is to be supported on a $1m$ deep, continuous footing. The soil beneath this footing is an undrained clay with $s_u=100$kPa and $=18\mathrm{.}5k\frac{N}{m^3}.$ The groundwater table is at a depth of $0\mathrm{.}5m$ below the ground surface. Using ASD, compute the footing width required for a factor of safety of $.)$