$($c$)$ The beam below s subjected to coupids of $5,10,$ and $20kN-m$ acting in the planes as shown in figure s $.$ The beam carries a mass of $1$ kg which may be assumed to be supported at a single point $2$ m from the right hand end, and is also subjected to a force of $2$ kN inclined at $45$ to the beam as shown. Find the vertical $"$L$"$ and magnitude and directions of the vertical and horizontal forces required at the right hand end to maintain equilibrium in figure $6.$