What is the stopping distance at 20 mph?

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Study for the UK Highway Code Test. Prepare with flashcards and multiple-choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

What is the stopping distance at 20 mph?

Explanation:
The stopping distance is the sum of thinking distance and braking distance. At 20 mph, these two distances add up to about 12 metres in total. Think of thinking distance as how far you travel while you react to a hazard, which depends on your speed and reaction time, and braking distance as how far you travel after you start braking until you stop, which grows with speed. So at this lower speed, the total is roughly 12 metres. The other figures reflect higher speeds: around 23 metres at 30 mph, about 36 metres at 40 mph, and roughly 53 metres at 50 mph.

The stopping distance is the sum of thinking distance and braking distance. At 20 mph, these two distances add up to about 12 metres in total. Think of thinking distance as how far you travel while you react to a hazard, which depends on your speed and reaction time, and braking distance as how far you travel after you start braking until you stop, which grows with speed. So at this lower speed, the total is roughly 12 metres.

The other figures reflect higher speeds: around 23 metres at 30 mph, about 36 metres at 40 mph, and roughly 53 metres at 50 mph.

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