Can a pedestrian, moving at an average speed of 2 m / s, walk 5 km in half an hour?

In order to answer the question of the problem, it is necessary to bring all the indicated values ​​into a single measurement system, for example, in seconds and meters.

Average pedestrian speed: V = 2 m / s.

The path he must travel: S = 5 kilometers (which is 5,000 meters).

The time it takes for him to travel this path: T = 0.5 hours (which is 30 minutes or 1,800 seconds).

S = V * T.

Let’s check if the equality is true if we substitute the data from the problem statement:

5,000 = 2 * 1,800.

Obviously, the equality is not true, since in 1,800 seconds a pedestrian can only walk 3,600 meters, moving at an average speed of 2 m / s.

Answer: in half an hour, moving at an average speed of 2 m / s, a pedestrian cannot walk 5 km.