In Norwegian road safety and vehicle operation, how does the braking distance of a vehicle change if the vehicle's driving speed is doubled from 40 km/h to 80 km/h?
Answer and explanation
Correct answer: A. Braking distance quadruples (proportional to v²)
- Step 1: Braking distance is proportional to the square of velocity (v²). Doubling the speed increases the braking distance by a factor of 2² = 4. Answer: Braking distance quadruples (proportional to v²). Why not the others: the alternative options do not accurately reflect vehicle safety standards, statutory requirements, or physical mechanics under Norwegian road regulations.
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