Stopping distance = Perception distance + Braking distance
1. Perception distance: This is the distance your vehicle travels from the moment you see a hazard to the moment you react and apply the brakes. It typically takes about 1.5 seconds for the average person to react. At 65 mph, your vehicle will travel approximately 156 feet during this time.
2. Braking distance: This is the distance your vehicle travels from the moment you apply the brakes to the moment it comes to a complete stop. The braking distance depends on several factors, including the condition of your brakes, the road surface, and the weather conditions. On dry pavement, a vehicle travelling at 65 mph may require about 375 feet to come to a complete stop.
Here's a summary of the calculations:
- Perception distance at 65 mph = 1.5 seconds x 65 mph = 156 feet
- Braking distance at 65 mph on dry pavement = 375 feet
Therefore, the total stopping distance for a vehicle travelling at 65 mph on dry pavement would be approximately:
Stopping distance = Perception distance + Braking distance = 156 feet + 375 feet = 531 feet
Please note that the above calculation provides an approximate estimate of the stopping distance. In real-world situations, it may vary depending on various factors such as driver reaction time, vehicle condition, road conditions, and weather conditions. Always maintain a safe following distance and adjust your speed according to the conditions to reduce the risk of accidents.
