Determine the largest torque $T$ which may be applied to end of the solid bar which is

shown in the diagram below, knowing that the maximum allowable shear stress $=115$MPa and $G=40$GPa. Provide your answer in $kNm$ with precision to two decimal points.

TABLE $3\mathrm{.}1.$ Coefficients for

Rectangular Bars in Torsion.

The same solid bar is subjected to a torque of $1\mathrm{.}5$ kNm$.$ Its total length, denoted as z$,$ is $605$ mm$.$ What will be the angle of twist? Provide your answer in degrees with precision to two decimal points.