Stopping distance · New South Wales

Practice Question 443

Choose A, B or C to see the correct answer.

When your speed doubles, what happens to your braking distance?

A It stays about the same on a dry road Correct Answer
B It becomes about four times longer Correct Answer
C It doubles, going up in proportion to speed Correct Answer

Why: Braking distance rises faster than speed. Doubling your speed makes the braking distance roughly four times as long.Source: official source

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