Physics · May / June 2018 · Paper 11 · Question 5

The minimum braking distance for a car is tested on a dry road. The test is then repeated on a wet road. What happens to the braking distance and to the frictional force between the tyres and the road?

1. Abraking distance decreases, frictional force decreases
2. Bbraking distance decreases, frictional force increases
3. Cbraking distance increases, frictional force decreases
4. Dbraking distance increases, frictional force increases

As printed in the paper