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AMDifficulty 2/5

If speed increases while reaction time stays the same, what happens to the distance travelled before braking starts?

Correct answer

Reaction distance increases.

Reaction distance increases: during the same time, the vehicle travels more metres. Inappropriate speed reduces the margin to avoid hazards and can worsen collision consequences. The question does not establish a fixed crash multiplier or imply that higher speed improves the driver’s reaction.

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All options

  • Reaction distance increases.

  • Reaction distance necessarily decreases.

  • It always stays the same despite higher speed.

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