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Difficulty: EasyFactors Affecting Braking Distance

Driver fatigue directly increases a vehicle's braking distance.

Answer: Answer

Answer

False. Driver fatigue affects reaction time and thinking distance, not the mechanical braking distance.
The statement is false. Driver fatigue slows reaction time and lengthens thinking distance. Braking distance is the physical distance the vehicle travels after the brake pedal is pressed, which is determined by factors such as speed, tyre condition, brake efficiency, vehicle weight, and road surface grip.

Step-by-Step Solution

1
Separate total stopping distance into its two distinct components.
Total stopping distance equals thinking distance plus braking distance.
Clear separation is required to identify whether a factor affects human reaction or mechanical stopping.
2
Analyze the specific effect of driver fatigue on the stopping process.
Fatigue slows down human reaction time, which increases the thinking distance before the brake pedal is pressed. Braking distance begins only after the brakes are applied and depends solely on vehicle and road conditions.
Driver physical state does not alter vehicle tyre grip, road surface friction, or brake mechanics.

Key Concept

Distinction between factors affecting thinking distance versus braking distance
Estimated Time:30s
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Topics

Factors Affecting Braking Distance

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