What factors can cause the reaction distance to increase?
A)The poor condition of the shock absorbers.
B)The poor condition of the road surface.
C)The poor condition of the driver.Correct
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 condition, never on speed or road conditions. Although it may seem that the reaction to an obstacle or unexpected situation must be instantaneous, the average reaction time of a driver is approximately 0.75 seconds.
The reaction distance is the metres travelled by the vehicle during the reaction time. This distance depends on the reaction time and the speed at which the vehicle is travelling (the higher the speed, the more metres covered in the same time).
The braking distance, which is the metres the vehicle travels from when the driver brakes until the vehicle stops, does depend on the condition of the vehicle (brakes, tyres, shock absorbers, etc.), the condition of the road surface (firm, poor condition, etc.), the mass of the vehicle and its load, weather conditions, speed, etc.
The stopping distance is the sum of the reaction distance plus the braking distance.
Therefore, the stopping distance is the distance the vehicle travels from when the driver perceives a hazard until the vehicle comes to a complete stop.
The reaction distance is the metres travelled by the vehicle during the reaction time. This distance depends on the reaction time and the speed at which the vehicle is travelling (the higher the speed, the more metres covered in the same time).
The braking distance, which is the metres the vehicle travels from when the driver brakes until the vehicle stops, does depend on the condition of the vehicle (brakes, tyres, shock absorbers, etc.), the condition of the road surface (firm, poor condition, etc.), the mass of the vehicle and its load, weather conditions, speed, etc.
The stopping distance is the sum of the reaction distance plus the braking distance.
Therefore, the stopping distance is the distance the vehicle travels from when the driver perceives a hazard until the vehicle comes to a complete stop.