stopping distance Flashcards
What is the formula for stopping distance?
Stopping distance = Thinking distance + Braking distance
How is thinking distance calculated?
Thinking distance = Speed x Reaction Time
How is braking distance calculated?
Braking distance = 2a/v^2
What does ‘a’ represent in the braking distance formula?
‘a’ represents deceleration.
What does ‘v’ represent in the braking distance formula?
‘v’ represents initial speed.
What is thinking distance?
Thinking distance is the distance travelled in the time it takes the driver to react to an emergency and prepare to stop.
What are the main factors affecting thinking distance?
The speed of the car and the reaction time of the driver.
What is the average reaction time of a human?
The average reaction time of a human is 0.25 s.
What can increase reaction time?
Tiredness, distractions (e.g. using a mobile phone), and intoxication (i.e. consumption of alcohol or drugs).
