How does excessive speed affect your stopping distance?

Study for the Utah CDL General Knowledge Test. Prepare with multiple choice questions and explanations for each answer. Get ready for your exam!

Excessive speed significantly increases the distance required to stop safely. When a vehicle travels at higher speeds, the kinetic energy of the vehicle also increases. This means that more force is needed to stop the vehicle, leading to a longer stopping distance.

The stopping distance includes two components: the reaction distance, which is how far a vehicle travels while the driver is reacting to a hazard, and the braking distance, which is how far the vehicle travels after the brakes are applied until it comes to a full stop. Both of these distances increase with speed.

At higher speeds, even a slight increase can greatly affect stopping distance, especially in emergencies. For example, a vehicle traveling at 60 mph will take significantly longer to stop than the same vehicle traveling at 30 mph.

This highlights the importance of managing speed on the road; driving too fast not only reduces reaction time but also compromises the ability to stop in a safe distance, making the vehicle more difficult to control and increasing the risk of accidents.

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