What distance corresponds to a stopping distance of 70 km/h?

When evaluating stopping distance, it's important to understand that it is influenced by both the speed of the vehicle and the conditions of the road. At a speed of 70 km/h, the average stopping distance is approximately 45 meters. This distance is calculated based on several factors including the reaction time of the driver and the braking distance required to bring the vehicle to a complete stop.

The stopping distance consists of two main components: the thinking distance and the braking distance. The thinking distance is the distance traveled while the driver is reacting to the hazard, while the braking distance is the distance the vehicle travels while coming to a stop after the brakes are applied. At 70 km/h (which is around 19.4 meters per second), the reaction time and the resulting distances combine to produce this total stopping distance of roughly 45 meters under normal driving conditions.

This measurement reflects typical values and averages, taking into account average reaction times and effective braking capabilities, and hence supports the choice indicating 45 meters as the stopping distance for a vehicle traveling at 70 km/h. Variations in road conditions, vehicle type, and driver alertness can affect actual distances, but 45 meters is a standard estimation.