Near Akersloot you are driving 50 km/h on a road outside the built-up area. How many metres is the minimum 2-second distance per the book's rule of thumb?
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Correct answer: 27.5 m
Correct: 27.5 m (±2.5).
The law names no fixed distance; with the rule of thumb (speed divided by 2, plus 10%) it is 27.5 m at 50 km/h and 55 m at 100 km/h
Correct answer: 27.5 m
Correct: 27.5 m (±2.5).
Correct answer: No fixed number: I must be able to stop within the clear road I can see ahead
False — a safe distance grows with your speed. The law names no fixed distance; with the rule of thumb (speed divided by 2, plus 10%) it is 27.5 m at 50 km/h and 55 m at 100 km/h
Why learners get this wrong: The law literally prescribes '2 seconds' as the minimum following distance.
Correct answer: False
Why learners get this wrong: With the fixed-point method, you start counting as soon as you yourself reach the point, not when the car ahead passes it.
Correct answer: About 27.5 m at 50 km/h and 55 m at 100 km/h
False — you make the distance four times as large. The 2-second distance is time times speed: twice as fast is twice as many metres, so 55 m at 100 km/h, not 110 m.
Why learners get this wrong: If you drive twice as fast, the 2-second distance in metres becomes four times as large.
Correct answer: 55 m
Correct: 55.0 m (±4.0).