5.6.5 Stopping Distances

• What is the definition of stopping distance?

  Total distance to stop
• Thinking distance is the distance the vehicle travels during the driver's reaction time
• What is the definition of thinking distance?

  Distance during reaction time
• The driver's reaction time is a factor affecting thinking distance.
• Match the factor with its effect on braking distance:

  Condition of the brakes ↔️ Increases braking distance if worn

  Road surface ↔️ Increases braking distance if wet

  Vehicle speed ↔️ Increases braking distance at higher speeds

  Vehicle mass ↔️ Increases braking distance with greater mass
• The total stopping distance can be represented as the sum of thinking distance and braking distance
• What is the definition of thinking distance?

  Distance during reaction time
• What is the definition of braking distance?

  Distance while brakes applied
• Arrange the stages a driver goes through when stopping a vehicle:

  1️⃣ Driver perceives a hazard

  2️⃣ Driver's reaction time begins

  3️⃣ Driver applies the brakes

  4️⃣ Vehicle starts braking

  5️⃣ Vehicle comes to a stop
• The condition of the brakes affects the braking distance.
• What is the definition of braking distance?

  Distance while brakes applied
• Factors influencing thinking distance include the driver's reaction time and the vehicle's speed
• Thinking distance is part of the total stopping distance.
• What two components make up stopping distance?

  Thinking and braking distance
• Match the distance type with its description:

  Thinking Distance ↔️ Distance during reaction time

  Braking Distance ↔️ Distance while brakes applied
• If a driver's thinking distance is 20 meters and their braking distance is 30 meters, their total stopping distance is 50 meters.
• What is the total distance a vehicle travels from the moment the driver perceives a hazard until it comes to a complete stop called?

  Stopping Distance
• The thinking distance is the distance traveled during the driver's reaction time.
• What is the distance traveled while the brakes are applied called?

  Braking Distance
• Order the components of stopping distance and their definitions.

  1️⃣ Thinking Distance: Distance traveled during the driver's reaction time

  2️⃣ Braking Distance: Distance traveled while brakes are applied
• Stopping distance is the sum of thinking distance and braking distance.
• If a car has a thinking distance of 20 meters and a braking distance of 30 meters, what is the stopping distance?

  50 meters
• The driver's reaction time is a factor influencing the thinking distance.
• What is the distance a vehicle travels from the moment the brakes are applied until it stops called?

  Braking Distance
• What are the four main factors influencing braking distance?

  Brakes, road, speed, mass
• If a car's speed doubles, the thinking distance also doubles.
• Increased driver reaction time extends the thinking distance.
• How does poorly maintained brakes affect braking distance?

  Increases braking distance
• Braking distance is directly proportional to the square of the vehicle's speed.
• What is the definition of thinking distance?

  Distance during reaction time
• What is the definition of braking distance?

  Distance while brakes are applied
• Match the components of stopping distance with their definitions and factors:

  Thinking Distance ↔️ Distance during reaction time; Driver's reaction time, Vehicle speed

  Braking Distance ↔️ Distance while brakes are applied; Brakes condition, Road surface, Vehicle speed, Vehicle mass
• Worn brakes increase the vehicle's braking distance.
• Longer reaction time increases thinking distance.
• What happens to braking distance if vehicle speed doubles?

  Quadruples
• The relationship between speed and braking distance is quadratic.
• What is the thinking distance when a car is traveling at 10 m/s and the reaction time is 1 second?

  10 meters
• Braking Distance is the distance a vehicle travels from the moment the brakes are applied until it comes to a complete stop
• Braking distance is proportional to the square of the speed.
• What is the braking distance when a car is traveling at 10 m/s?

  5 meters