vehicle stopping distance

• What should you be able to describe by the end of the video on stopping distance?

  The stopping distance of a vehicle
• How does the stopping distance of a vehicle vary with speed?

  The stopping distance increases with speed
• What are the two components that make up the stopping distance?

  The thinking distance and the braking distance
• What is the definition of stopping distance?

  The total distance traveled from when the driver spots an obstruction to when the car stops
• What is the thinking distance?

  The distance traveled by the car during the driver's reaction time
• What factors contribute to the driver's reaction time?

  Time taken to spot the obstruction, make a decision, and move their foot to the brake
• What is the typical range for a driver's reaction time?

  Between 0.2 seconds and 0.9 seconds
• How can you measure a person's reaction time using a ruler?

  By dropping a ruler and measuring the distance it falls before being caught
• Why is it important for a driver to have the shortest possible reaction time?

  To react quickly to obstructions and reduce stopping distance
• What factors can increase a driver's reaction time?

  Alcohol, certain drugs, and distractions like mobile phones
• How do wet or icy conditions affect braking distance?

  They reduce friction and increase braking distance
• What effect do worn tires have on braking distance?

  They increase the braking distance due to reduced friction
• How do worn brakes affect braking distance?

  They increase the braking distance
• What are the components of stopping distance and their definitions?

  • Stopping Distance: Total distance from spotting an obstruction to stopping.
  • Thinking Distance: Distance traveled during the driver's reaction time.
  • Braking Distance: Distance traveled from applying brakes to stopping.
• What factors affect thinking distance and braking distance?

  Factors affecting Thinking Distance:

  • Reaction time variations
  • Alcohol and drugs
  • Distractions (e.g., mobile phones)

  
  

  Factors affecting Braking Distance:

  • Wet or icy conditions
  • Worn tires
  • Worn brakes
• What is the stopping distance for a typical family car at 30 miles per hour?

  Approximately 23 meters, or six car lengths.
• How does speed affect stopping distance?

  • Greater speed results in greater stopping distance.
  • Assumes the same braking force is applied.