44 feet
Stopping distance at 40mph = 36m
At 40 mph, a driver's reaction time is typically around 1.5 seconds. During this time, a vehicle travels approximately 88 feet, which is the distance covered while the driver perceives a need to stop and begins to react. Therefore, the total stopping distance will include this reaction distance plus the braking distance, which can vary based on road conditions and vehicle type. Overall, the total distance to stop from 40 mph can be around 120-150 feet, depending on these factors.
its the trany going out.
When speed increases with the distance between cars, there is a greater risk of accidents due to reduced reaction time and increased stopping distance. Drivers may not be able to brake in time if the distance is too large, leading to rear-end collisions or other accidents. It is important to maintain a safe following distance to allow for proper reaction time in case of sudden stops or changes in traffic.
120ft.I discovered a formula for calculating it for any given speed. I've tested it for 20mph, 30mph,40mph,50mph,60mph and 70mph. The formula is as follows:overall stopping distance in ft = Sp x (1 + Sp/20).Where Sp is the magnitude of the speed in mph.So at 40mph it is:40 x (1 + 40/20) = 50 x (1 + 2) = 40 x 3 = 120ft.
Stopping Sight Distance
The vehicle's reaction distance depends on the driver's reaction time.
You can use a ratio here, say 40mph/150ft = 80mph/xft then cross multiply: 40x = 150 * 80 40x = 12000 x = 300
Reaction distance is the distance a vehicle will travel before the operator can react to what is observed. This distance will vary depending on the speed of the vehicle. The reaction distance is actually the reaction time of the operator.
reaction distance is the distance travelled from the time you see and analyze a threat, to the time you actually physically react.
The stopping distance of a car can be determined by considering the car's speed, reaction time of the driver, and the braking distance required to come to a complete stop. The stopping distance is the sum of the reaction distance (distance traveled during the driver's reaction time) and the braking distance (distance traveled while the brakes are applied). It can be calculated using the formula: Stopping distance Reaction distance Braking distance.
Because it you a slow reactionist, then it effects the time when you do react. For example, a car is coming at you and you react quickly. You reaction distance will be better that when you react a couple seconds later.