Stopping distance investigation

The graph shows that whilst the thinking distance is directly proportional to the speed, the gradients of the curves of the braking and total (overall) stopping distances increase considerably as speed increases.

This graphically indicates that as a car is driven faster the distance taken to stop it lengthens by a continually increasing factor.

For the maths geeks the gradient of the total stopping distance curve starts at about +0.65 increasing to a gradient of about +1.8 at the end of the curve, which shows a gradient increase of around 300% through the range. Scary isn't it?