Stopping distances

• What is the definition of stopping distance?

  Stopping distance is the sum of two distances
• Why is knowing stopping distances useful?

  It helps in everyday life and exams
• What are the two components of stopping distance?

  • Thinking distance
  • Braking distance
• What happens during an emergency stop?

  Maximum force is applied by the brakes
• What is thinking distance?

  Distance traveled during the driver's reaction time
• What is braking distance?

  Distance taken to stop after brakes are applied
• What factors affect thinking distance?

  • Speed of the vehicle
  • Reaction time of the driver
  • Tiredness, drugs, or alcohol
  • Distractions
• What factors affect braking distance?

  • Speed of the vehicle
  • Road surface conditions
  • Condition of the tyres
  • Quality of the brakes
• How does speed affect thinking distance?

  The faster you go, the farther you travel
• How does reaction time affect thinking distance?

  Longer reaction time increases thinking distance
• How does speed affect braking distance?

  Faster speed increases braking distance significantly
• How much longer is braking distance at 70 mph compared to 30 mph?

  It is 7 times longer
• What effect does a wet or icy road have on braking distance?

  It decreases grip, increasing stopping distance
• What happens if tyres are bald?

  They cannot shed water, leading to skidding
• How do worn brakes affect stopping distance?

  They reduce braking force, increasing stopping distance
• Why is it unsafe to drive too close in icy conditions?

  • Increased chance of skidding
  • Longer stopping distance required
  • More space needed to stop safely
• Why are speed limits important?

  Speed significantly affects stopping distance
• What might an exam ask regarding stopping distances?

  Factors affecting thinking or braking distances
• What is the formula for stopping distance?

  Stopping distance = thinking distance + braking distance