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BDifficulty 2/5

Is reaction distance always the same?

Correct answer

No, it depends on speed and reaction time.

No. Reaction distance is the distance travelled from perceiving danger until beginning to act. It depends on speed and reaction time: at the same reaction time, higher speed means travelling more metres. Fatigue and distraction can lengthen that time. Braking distance is also variable and depends on factors including speed, grip and vehicle condition.

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  • No, but braking distance is always constant.

  • No, it depends on speed and reaction time.

  • Yes, both reaction and braking distances are always constant.

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