You drive at 60 mph. A child runs out 60 metres ahead. Using the typical overall stopping distance, what happens?
Answer and explanation
Correct answer: A. You stop in 73 metres
- Step 1: The overall distance at 60 mph is 18 + 55 = 73 m. Step 2. 73 m exceeds the 60 m available, so you cannot stop in time. Answer: You stop in 73 metres. Why not the others: 55 m is only the braking distance and ignores thinking, while 18 m and 36 m are single components or other speeds' figures.
Practise more Safety Margins.
Free questions with an explanation for every one, and full timed Driving Theory Test (Car) - Great Britain mock tests.
More Safety Margins questions
- What is the typical overall stopping distance at 30 mph on a dry road, according to the Highway Code?
- What is the typical overall stopping distance at 70 mph on a dry road?
- What is the typical thinking distance at 50 mph?
- What is the typical braking distance at 60 mph on a dry road?
- Using the typical figures, how much longer is the overall stopping distance at 70 mph than at 30 mph?
- At 50 mph the thinking distance is 15 m and the braking distance is 38 m. What is the overall stopping distance?