Problem $4$:

A $22,215N$ passenger car has a $2743\mathrm{.}2$ mm wheelbase and a CG at $1066\mathrm{.}8$ mm behind the front axle and at $457\mathrm{.}2$ mm above the ground. The tractive effort distribution gives the frontal axle $90\%$ of the total tractive force. The car is moving on a horizontal plane. Determine which tires will skid first if the car is moving on a surface with first, a coefficient of friction $0\mathrm{.}85$ and, second, a coefficient of friction of $0\mathrm{.}15.$ Ignore drag and rolling resistance.