Answer:
It's quite simple to figure out the three-second gap. Choose an overhead road sign, a tree, or another roadside landmark when following a car. When the car ahead of you crosses that marker, count how many seconds it takes you to pass the identical position (count 1-1,000; 2-1,000; 3-1,000).
Explanation:
It's quite simple to figure out the three-second gap. Choose an overhead road sign, a tree, or another roadside landmark when following a car. When the car ahead of you crosses that marker, count how many seconds it takes you to pass the identical position (count 1-1,000; 2-1,000; 3-1,000).