What is the stopping distance at 50 km/h under ideal conditions?

Answer: B — About 23 meters

The stopping distance of a vehicle at a speed of 50 km/h under ideal conditions is approximately 23 meters. This distance includes the perception time, reaction time, and braking distance. At this speed, a driver can generally expect to see an obstacle and react within a second or two, and then the brakes will engage, decelerating the vehicle to a stop. Under ideal conditions, which means good weather, dry roads, and a properly functioning vehicle, the average total stopping distance is indeed around 23 meters. This figure is essential for drivers to understand as it helps them gauge a safe following distance from other vehicles and allows them to react appropriately in various driving situations. Knowing this distance can significantly enhance road safety by emphasizing the importance of maintaining a safe speed and adequate space between vehicles.