Physics 5054 · O Level · Friction

Friction — practice question

A car’s minimum braking distance is measured on a dry road surface. The same test is then carried out again on a wet road. What happens to the braking distance and to the frictional force between the tyres and the road?

  • Abraking distance decreases; frictional force decreases
  • Bbraking distance decreases; frictional force increases
  • Cbraking distance increases; frictional force decreases
  • Dbraking distance increases; frictional force increases

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