As shown in Fig. $03($a$),$ it has a length of $L=1m,$ a uniform loading of $q=28k\frac{N}{m},$ and there is a simple supported beam with a rectangular cross$-$section shown in Fig. $3($b$).$

Determine the following $($The modulus of elasticity of steel is $E=210$GPa.$)$

$(1)$ Reaction forces at both ends A and $B,(2)$ shear force diagram, $(3)$ bending moment diagram, $(4)$ maximum shear force, $(5)$ maximum bending moment, $(6)$ maximum bending stress and position, $(7)$ maximum shear stress and position, $(8)$ maximum deflection function, and $(9)$ the maximum deflection position and value, ${}_{\text{m}\text{a}\text{x}},(10)$ sketch the stress state at point $C$ as shown in Fig. $03($c$),(11)$ draw Mohr' s circle for the stress state at point $C$ and the principal stresses and $($:${}_2$