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.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.