Trusted Local Auto

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Observation, Speed & SpaceStandalone practice

You follow a car at 55 mph on a dry highway. The car passes a road sign. You start to count, and your front bumper reaches the same sign when you say "one thousand one." What does this tell you?

Blue A follows silver B on a dry two-way highway. A’s front is level with the back of a roadside sign. A bracket gives the stated one-second gap at 55 mph.

Blue A follows silver B on a dry two-way highway. A’s front is level with the back of a roadside sign. A bracket gives the stated one-second gap at 55 mph.

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