A rectangular footing, $2m3\mathrm{.}5m,$ is placed at a depth of $1\mathrm{.}5m$ below ground surface. Detemine both by Meyerhof's recommendations as well as IS: $6403(1981)$ recommendations, the net safe load that can be supported by the footing with a factor of safety of $2\mathrm{.}5$ with respect to shear failure. The soil properties are: $c^{\text{'}}=20k\frac{N}{m^2},{}^{\text{'}}=22.$