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Topic: Speed and distances · Nº 291 / 961

Si aumentamos la velocidad de 55 km/h a 110 km/h, ¿aumenta también la distancia de frenado?

If we increase our speed from 55 km/h to 110 km/h, does the braking distance also increase?

  • ASí, en la misma proporción.Yes, in the same proportion.
  • BSí, en mayor proporción.Yes, in a greater proportion.
  • CNo, la distancia de frenado no depende de la velocidad.No, braking distance does not depend on speed.
Show answer

Correct answer

  • BSí, en mayor proporción.Yes, in a greater proportion.
Explanation

Braking distance increases roughly with the square of the speed: if speed doubles, from 55 to 110 km/h, braking distance is multiplied by about four. That is why it increases in a greater proportion than the speed.

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