$7.$ Shear and Bending $(15$ Marks$)$

A frame is comprised of a flange, web and attached plating as shown. At a certain cross section ther is a moment of $\backslash (60\backslash$mathrm$\{$kN$\}-\backslash$mathrm$\{$m$\}\backslash )$ and a shear of $200$ kN $.$

a$)$ what is the maximum bending stress at this cross section $(6)$

b$)$ what is the maximum shear stress in the section. $(7)$

c$)$ What is the shear force $($in $\backslash (\backslash$mathrm$\{$kN$\}/\backslash$mathrm$\{$m$\}\backslash ))$ that must be transferred from the flange to the web? $(2)$