Assume we want to determine the minimum stopping distance of an automobile traveling at 60 mph. We again assume that the maximum value of µ is unity. Then the maximum deceleration is -g. We find from
Note that problems of uniform acceleration and deceleration differ by the negative sign. We could have initiate the stopping time as the same as for the previous problem and found the distance from x = t = 44 × 2.75 = 121 ft.