Problem $4\mathrm{.}2-6$

The figure shown below is a cross$-$section of a cantilever beam supporting a uniform load of $2\mathrm{.}5k\frac{N}{m}$ including its own weight and a concentrated load of $30$ kN at its free end. It has $f_c=8\mathrm{.}00$MPa,$f_2=124$MPa, and $n=10.$ For this beam compute the following:

The safe resisting moment of the beam.

The maximum beam span.