Final answer:
The rule used to estimate your total stopping distance under ideal conditions is the 3-second travel rule. By following this rule, you will have enough time and space to react and stop your vehicle safely.
Step-by-step explanation:
The rule used to estimate your total stopping distance under ideal conditions is the 3-second travel rule.
This rule states that you should maintain a distance of at least three seconds from the vehicle in front of you to allow for a safe stopping distance.
By following this rule, you will have enough time and space to react and stop your vehicle safely.