In heavy rain a driver doubles the dry two-second gap. What gap in metres should be left to the car ahead at 72 km/h?
Answer and explanation
Correct answer: A. 80 m
- Step 1: The doubled gap is 4 seconds, and at 72 km/h the car covers 20 m per second. Step 2. 4 x 20 = 80 m. Answer: 80 m. Why not the others: 40 m: 40 m is the normal dry two-second gap. 20 m: 20 m is only one second of travel. 48 m: 48 m divides by 6 instead of converting with 3.6.
Practise more Wet-weather gaps.
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