Does alcohol affect the stopping distance?
A)Yes, decreasing it.
B)Yes, increasing it.Correct
C)No, the stopping distance only depends on speed.
STOPPING DISTANCE = REACTION DISTANCE + BRAKING DISTANCE.
Reaction time is the time that elapses from when the driver sees an obstacle until they react. This time varies depending on the driver's psychophysical state (it increases with alcohol, drugs, medication, fatigue, sleep, etc.), never due to speed or the condition of the road. Although it may seem that reaction to an obstacle or unforeseen situation should be instantaneous, the average reaction time of a driver is approximately 0.75 seconds.
The reaction distance is the meters traveled by the vehicle during the reaction time. This distance depends on the reaction time and the speed at which one is driving (at greater speed, more meters traveled in the same time).
The stopping distance is the sum of the reaction distance plus the braking distance. Under the effects of alcohol, the reaction time will increase, consequently the reaction distance will also increase, thus increasing the stopping distance.
The reaction distance is the meters traveled by the vehicle during the reaction time. This distance depends on the reaction time and the speed at which one is driving (at greater speed, more meters traveled in the same time).
The stopping distance is the sum of the reaction distance plus the braking distance. Under the effects of alcohol, the reaction time will increase, consequently the reaction distance will also increase, thus increasing the stopping distance.