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Question 4255

As speed increases...

  1. reaction ability increases.
  2. reaction distance increases.
  3. reaction time decreases.
Show answer and explanation

Correct answer: reaction distance increases.

While you react, the car keeps moving at the same speed, so the faster you go, the more meters it travels before you start braking. With a reaction time of about 0.75 seconds, that's about 10 meters at 50 km/h and about 25 at 120 km/h. Driving faster doesn't shorten your reaction time, and it also reduces your ability to react.

DGT, Manual II. Cuestiones de Seguridad Vial (2026)