If you double your speed, how does the braking distance change?
- A)It is multiplied by about four
- B)It doubles
- C)It hardly changes
Show the correct answer
A) It is multiplied by about four
Braking distance grows with the square of the speed: at twice the speed you need about four times as many metres to stop.
More speed questions
- What is the speed limit on an urban street with a single level surface, where the roadway and pavement are at the same height?
- On a conventional road, may you exceed the speed limit to overtake?
- In normal conditions, what is the minimum speed for a car on a motorway or dual carriageway?
- What is the speed limit for a car towing a trailer on a motorway or dual carriageway?
- What is the speed limit for a car towing a trailer on a conventional road?
- What is the speed limit for a bus on a motorway or dual carriageway?
- What is the stopping distance?