This is one of the more numbers-heavy FTT topics, and it's tested through scenarios, not just a straight "what is the formula" question.
Here is one worth locking in:
If your speed doubles, does your stopping distance also just double?
No, stopping distance increases more than proportionally because braking distance is related to the square of speed, so doubling your speed roughly quadruples the braking distance, not just doubles it. This is one of the most commonly underestimated relationships in the whole FTT syllabus.
Beyond the speed relationship, this category also covers how wet roads and vehicle load affect total stopping distance.
Your turn. If there is a stopping distance scenario you keep mixing up, post it here. If you know the answer to someone else's, help them out.
