Stopping distance and following — Michigan Permit Test

Stopping distance and following on the Michigan permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Your stopping distance can be affected by fatigue, attention, the type and weight of your vehicle, the condition of your tires and brakes, the road surface and the weather.

Many things add to the distance you need, so leave more room than you think.

Your stopping distance can be affected by fatigue, how well you pay attention, the type and weight of your vehicle, the condition of your tires and brakes, the type of road surface and the weather.
What Every Driver Must Know, p.64

A 3- to 4-second following distance is required; count from when the vehicle ahead passes a fixed point to when you reach it.

Counting seconds works at any speed, which a fixed number of car lengths does not.

A 3- to 4-second following distance is required.
What Every Driver Must Know, p.64

When speeds increase or conditions are poor, increase your following distance up to 6 seconds or more if necessary.

Higher speed and poor grip both stretch your stopping distance.

When speeds are increased, or during adverse driving conditions, increase your following distance up to 6 seconds or more if necessary.
What Every Driver Must Know, p.64

To make a smooth stop on wet pavement, increase brake pressure gradually and reduce it just before you stop.

Easing off at the end keeps the car from jerking or sliding.

To make a smooth stop, increase pressure on the brake pedal gradually and just before you stop, reduce the pressure.
What Every Driver Must Know, p.64

Look down the road 20 to 30 seconds ahead to spot hazards early and avoid last-second reactions.

Seeing trouble early gives you time to slow or change lanes calmly.

Look down the road 20-30 seconds.
What Every Driver Must Know, p.64

On the test

Which of these affects your stopping distance?

The condition of your tires and brakes. Many things add to the distance you need, so leave more room than you think. What Every Driver Must Know, p.64: “Your stopping distance can be affected by fatigue, how well you pay attention, the type and weight of your vehicle, the condition of your tires and brakes, the type of road surface and the weather.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

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All Michigan permit topics

Where these come from

Every rule here is checked against What Every Driver Must Know, published by the Michigan Department of State, and against the state code itself. Last checked 2026-10-03.