3-Second Rule Driving Quiz

What is the purpose of the 3-second rule in driving?

• To conserve fuel

• To help drivers change lanes

• To maintain a safe following distance

• To avoid speeding tickets

At 60 mph, how far do you travel in 3 seconds?

• 132 feet

• 180 feet

• 264 feet

• 360 feet

The 3-second rule is primarily based on:

• Road width

• Human reaction time

• Engine size

• Traffic flow

Tailgating can lead to:

• Traffic tickets

• Rear-end collisions

• Higher insurance costs

• All of the above

A driver with a slower reaction time will:

• Stop in less time

• Stop in the same time as everyone else

• Require a longer distance to stop

• Not be affected

If a driver is going 88 ft/sec and their reaction time is 1.5 seconds, how far will they travel before braking?

• 88 feet

• 120 feet

• 132 feet

• 150 feet

What is the formula for braking distance (on dry pavement)?

• $v \cdot t$

• $\frac{v^2}{2 \mu g}$

• $\mu \cdot v \cdot g$

• $\frac{v}{t}$

If a car's total stopping distance was 264 feet and reaction time was 1.5 seconds at 88 ft/sec, what was the braking distance?

• 132 ft

• 234 ft

• 198 ft

• 132 ft

If a vehicle stops in 190 feet after braking, and the coefficient of friction is 0.7, what is the approximate speed in ft/s?

• 66

• 83

• 90

• 100

What unit conversion is used to change ft/sec to mph?

• Multiply by 2

• Multiply by 88

• Multiply by $\frac{3600}{5280}$

• Divide by 3600