$(20$ points$)$ Internal reactions: The $8$ m cantilever beam shown has a concentrated load at the free end of $800$ N $,$ a coupled moment at the midpoint $(4$ m $)$ of $4000N-m,$ and a distributed load of $200\frac{N}{m}$ from the midpoint to the wall $(4$ m to $8$ m $).$ i$)$ Draw an internal free body diagram and ii$)$ calculate the internal forces at a point $5\mathrm{.}2$ m from the free end of the beam.