Questions and Answers
What is stopping distance?
Stopping distance is the total distance travelled from the point the driver first sees a reason to stop to when the vehicle actually stops.
What is thinking distance?
Thinking distance is the distance travelled between the moment you first see a reason to stop to the moment you use the brake.
What is braking distance?
Braking distance is the distance travelled from the time the brake is applied to when the vehicle stops.
Thinking Distance = ______ * Reaction Time
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Reaction Time = Thinking Distance / ______
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To calculate the braking distance use equation ______
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Thinking distance is directly proportional to the speed of the car.
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Which of the following factors affect thinking distance? (Select all that apply)
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Identify factors that affect braking distance. (Select all that apply)
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Study Notes
Stopping Distances
- Stopping distance measures the total distance from when a driver perceives the need to stop until the vehicle comes to a complete halt.
Thinking Distance
- Thinking distance is the range covered from the moment a driver recognizes the need to stop until the brakes are applied.
- Calculated using the formula: Thinking Distance = Speed * Reaction Time.
Braking Distance
- Braking distance refers to the distance a vehicle travels after the brakes are engaged until it stops.
- Calculated with the formula: V² = U² + 2as, where V is final velocity, U is initial velocity, a is acceleration, and s is distance.
Reaction Time
- Reaction time can be determined by: Reaction Time = Thinking Distance / Speed.
Relationship Between Speed and Thinking Distance
- There is a direct proportional relationship between thinking distance and vehicle speed, increasing by 3 meters for every 10 mph increase.
Factors Affecting Thinking Distance
- Various factors can influence thinking distance, including:
- Age
- Tiredness
- Alcohol consumption
- Drug use
- Distractions (e.g., mobile phones, passengers)
Factors Affecting Braking Distance
- Braking distance can be impacted by:
- Road conditions (e.g., rain, fog)
- Tire quality and friction
- Vehicle speed
- Mass of the vehicle
- Quality of the braking system
- Road surface (e.g., gravel vs. asphalt)
- Inclines (hills impact gravitational forces)
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Description
This quiz covers the concepts of stopping distances including thinking distance, braking distance, and reaction time. It explores how these distances are calculated and the relationship between speed and thinking distance. Understand the factors that affect these measurements to improve driving safety.
