What is one factor that can increase a vehicle's stopping distance?

Wet road conditions significantly increase a vehicle's stopping distance due to the reduced friction between the tires and the road surface. When roads are wet, water can create a thin layer between the tires and the pavement, leading to hydroplaning or a decrease in the tires' grip. This means that when a driver applies the brakes, the vehicle struggles to stop as quickly as it would on a dry surface. The stopping distance can be considerably longer in these conditions, making it crucial for drivers to adjust their speed and following distances when faced with wet roads to maintain safety.