UK Driving Theory Practice Exam

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Prepare for the UK Driving Theory Test with an engaging quiz that includes multiple-choice questions, detailed explanations, and interactive study tools. Get the knowledge you need to pass your exam with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the braking distance for a vehicle traveling at 50 mph?

100 ft
125 ft
175 ft
200 ft

The correct answer is: 125 ft

The correct answer regarding the braking distance for a vehicle traveling at 50 mph is 125 feet. At this speed, the braking distance can be derived using a general rule of thumb used in driving theory: the braking distance (in feet) can be estimated as the square of the speed (in mph) divided by 20. Therefore, for a vehicle traveling at 50 mph, you would calculate it as follows: Braking distance = (Speed in mph)² / 20 Braking distance = (50)² / 20 = 2500 / 20 = 125 feet. This calculation illustrates that when traveling at 50 mph, it takes approximately 125 feet for a vehicle to stop under typical conditions. This distance can be influenced by various factors such as road conditions, vehicle type, braking efficiency, and the driver's reaction time, but 125 feet serves as a standard reference point for braking distance at this speed. The other options represent distances that are either too short or too long for the braking performance expected at this mph, emphasizing the importance of understanding braking distances for safe driving practices.