When driving above 40 mph, how should you adjust the following distance rule?
a.No adjustment is needed
b.Add 1 additional second to the standard following distance
c.Double the entire following distance
d.Add 3 additional seconds
Explanation
At speeds above 40 mph, you should add 1 additional second to the following distance calculated by the 1-second-per-10-feet rule. This extra second accounts for the increased stopping distance at higher speeds.