1. What is the Stopping Distance Equation?

The stopping distance equation calculates the total distance a vehicle travels from the moment the driver perceives a hazard until the vehicle comes to a complete stop. It combines both reaction distance and braking distance.

2. How Does the Calculator Work?

The calculator uses the stopping distance equation:

Where:

• \( d \) — Total stopping distance (meters)
• \( v \) — Vehicle speed (km/h)
• \( t \) — Driver reaction time (seconds)
• 0.05 — Constant for dry road conditions

Explanation: The equation accounts for both the distance traveled during reaction time and the distance needed to physically stop the vehicle.

3. Importance of Stopping Distance Calculation

Details: Understanding stopping distances is crucial for safe driving, accident prevention, and road design. It helps drivers maintain proper following distances.

4. Using the Calculator

Tips: Enter your speed in km/h and typical reaction time (average is 1 second). The calculator will show your total stopping distance.

5. Frequently Asked Questions (FAQ)

Q1: How does speed affect stopping distance?
A: Stopping distance increases dramatically with speed - doubling your speed more than quadruples your stopping distance.

Q2: What factors can increase stopping distance?
A: Wet roads, worn tires, poor brakes, distracted driving (longer reaction time), and vehicle weight.

Q3: Is the 2-second following rule enough?
A: The 2-second rule is a minimum for dry conditions. Increase following distance in poor conditions.

Q4: How accurate is this calculator?
A: It provides estimates for dry road conditions. Actual stopping distances may vary based on vehicle and road conditions.

Q5: Why is reaction time important?
A: At 100 km/h, you travel 28 meters per second. Even a 0.5 second delay adds 14 meters to your stopping distance.