If a child runs into the road 45-50 feet ahead of your car, what is the highest speed you should be going to stop safely?

Study for the Texas DPS Learner’s Permit Exam. Review with multiple choice questions designed to help you understand Texas road rules and driving laws. Remember, each question comes with hints and explanations. Prepare to ace your test!

To determine the highest speed at which you can safely stop if a child runs into the road 45-50 feet ahead of your vehicle, it's important to consider both your stopping distance and reaction time. At lower speeds, the stopping distance decreases significantly, which is critical in emergency situations involving pedestrians, especially children.

When traveling at 15 mph, your total stopping distance (which includes both the distance you travel while reacting and the distance it takes to come to a complete stop) is relatively short. At this speed, you have a better chance of executing an effective stop within the 45-50 feet needed to avoid hitting a child who unexpectedly runs into the road.

As speed increases, both the reaction time and the braking distance increase as well. Consequently, 25 mph, 30 mph, and 40 mph would result in much greater stopping distances, reducing your ability to react in time to prevent a potential accident. The physics behind stopping distances underscores the importance of maintaining a speed that is safe for the environment you are driving in, particularly in situations where children may be present.

Thus, maintaining a speed of 15 mph allows for a significantly higher chance of stopping in time to avoid a tragic incident if a child suddenly appears on the road

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