Final answer:
The three-second rule helps drivers determine a safe following distance.
Step-by-step explanation:
The statement is True.
The three-second rule is a guideline for maintaining a safe following distance while driving. According to this rule, a driver should maintain a distance from the vehicle in front that allows them to come to a stop within three seconds if the leading vehicle suddenly stops. The three-second rule helps to ensure that there is enough time and space to react and brake safely without causing a collision.
For example, if a car is traveling at a constant speed on a straight road and the driver notices that it takes 3 seconds for most cars to travel from one point to another, such as two poles that are 50 meters apart, then the driver can use this information to determine a safe following distance.