$3\mathrm{.}3\mathrm{.}4.[$Level $1]$ A car exiting a highway travels along the

path shown. At A the road's radius of curvature is $250$ ft $,$

at $B$ it's $1000$ ft $,$ and at $C$ it's $400$ ft $.$ Assume a constant

speed of $45$ mph and calculate the overall side force gener$-$

ated between the car's tires and the road at each of these

points.