Determine the maximum wide$-$beam shear stresses $(v_{su})$ acting on the critical section$($s$)$ of the reinforced concrete footing given the following information:

The column loads are $400$ kips vertical load and $120$ kips.ft moment,

The column dimensions are three feet by two feet $(3\text{'}*2\text{'}),$

The footing dimensions are $L=$Ten$({10}^{\text{'}})$ feet and $B=$Eight$(8^{\text{'}})$ feet,

Uniform stress under the footing is required,

The effective depth of the reinforced concrete footing is $21$ inches $").$

Determine the maximum concrete shear strength $(v_n)$ against the wide$-$beam shear assuming the reinforcement ratio $()$ to be $0\mathrm{.}002,$ the effective depth of the reinforced concrete footing is $21$ inches