To determine the distance you should leave between you and the car in front of you when driving the super-fast French car at 70 mph, we can use the given relationship between braking distance (d) and speed (s).
The relationship provided is d(s) = 0.05s, where s is the speed in miles per hour (mph) and d is the braking distance in feet.
Substituting the given speed, s = 70 mph, into the equation, we have:
d(70) = 0.05 * 70
d(70) = 3.5
Therefore, if you are driving the super-fast French car at 70 mph, you should leave a distance of 3.5 feet between you and the car in front of you.