What is the minimum safe distance you should maintain between vehicles when driving at 40 km/h?

Maintaining a safe distance between vehicles is crucial for road safety, allowing sufficient time to react in case of sudden stops or emergencies. When driving at 40 km/h, the recommended minimum safe distance is typically around 22 meters. This distance ensures that a driver has adequate space to stop safely if the vehicle ahead suddenly brakes, taking into account the reaction time and braking distance required at that speed.

At 40 km/h, a vehicle can cover about 11 meters in one second. By maintaining a safe distance of 22 meters, a driver allows for approximately two seconds of reaction time and stopping distance, which is considered a safe following distance in many driving guidelines. This two-second rule helps in preventing accidents and promotes a safer driving environment for everyone on the road.

The other choices reflect distances that could be either excessive or insufficient for the speed in question, emphasizing the importance of matching the safe distance to the speed of travel for optimal safety.