Answer
$$M_{\varepsilon}=\{35.4 \mathbf{k} \mid \mathrm{N} \cdot \mathrm{m}
$$
Work Step by Step
$$
\begin{aligned}
&M_z=50(0.8+0.2) \cos 45^{\circ}=35.36 \mathrm{~N} \cdot \mathrm{m}\\
&M_{\varepsilon}=\{35.4 \mathbf{k} \mid \mathrm{N} \cdot \mathrm{m}
\end{aligned}
$$
