What is the recommended stopping distance when driving at 30 mph in wet conditions?

The recommended stopping distance when driving at 30 mph in wet conditions is typically around 120 feet. This distance accounts for several factors that affect stopping power, such as reduced tire traction on wet roads and increased reaction time needed when conditions are less than ideal.

When driving on wet surfaces, vehicles need more distance to come to a complete stop due to the potential for hydroplaning and the decreased friction between the tires and the road. Under normal conditions, the stopping distance may be shorter, but wet conditions significantly increase it. In general, the stopping distance combines perception time, reaction time, and braking distance, all of which can be lengthened due to wet conditions.

The other choices represent distances that are excessive for this speed in wet conditions. For example, a stopping distance of 240 feet is more applicable to higher speeds or more severe road conditions than 30 mph in light rain. The understanding of these distances is crucial for safe driving and helps drivers maintain a safe space between themselves and other vehicles or obstacles on the road.