3 ptsA,A1,A2Official number: 6515
What is the main factor determining the braking distance of a motorcycle?
Explanation
Correct answer: The type of surface on which the vehicle is moving.
The length of the braking distance depends directly on the grip of the tyres on the road surface. As can be seen in the picture, the road surface is wet, which significantly reduces the coefficient of friction compared to a dry road. Under these conditions, the motorcycle's braking distance is significantly lengthened; therefore, the type and condition of the road surface is a key factor.