How do you apply the two-second rule?
Answer and explanation
Correct answer: D. Pick a fixed object, and check that you pass it at least two seconds after the car ahead
- Step 1: A time gap grows with speed. Step 2. Count the seconds out loud as you pass the mark. Answer: Pick a fixed object, and check that you pass it at least two seconds after the car ahead. Why not the others: Count two seconds after the vehicle ahead brakes: this is reaction, not following distance. Stay two car lengths behind at any speed: two car lengths shrink in time as speed rises. Keep one car length for each 10 km/h of speed: that distance rule is a different rule of thumb and gives less than two seconds at motorway speed.
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More Judging speed and conditions questions
- When driving at night on an unlit road, how fast should you drive?
- In rain, how should the gap to the vehicle ahead change?
- What happens to the energy a car must lose in braking when speed doubles?
- Your car can only manage 55 km/h on a long hill, and the minimum speed on the motorway is 65 km/h. What should you do?
- You approach a junction with limited view to the left. What speed is right?
- A crosswind gust hits your car on an exposed road. What should you do?