What is the effect of wet conditions on stopping distances?

In wet conditions, the presence of water on the road reduces traction between the tires and the pavement. This decrease in traction means that vehicles require a longer distance to come to a complete stop. The water creates a slippery surface, which can lead to hydroplaning and a loss of control, further contributing to the longer stopping distances.

As for the other options, the idea that wet conditions shorten stopping distance is inaccurate, as is the belief that they have no effect at all. While tire type does play a role in overall traction and performance, the fundamental principle that wet roads increase stopping distances applies broadly across different types of tires. Therefore, regardless of tire characteristics, the increased stopping distance due to wet conditions is a critical concept for safe driving.