The skier ran 5 km back to the starting point. Determine the path and movement of the athlete.

In this task, we need to know exactly what the path and displacement are, the path is the length or distance, and the displacement is the vector connecting the start position with the end position, so if it returns there, the displacement is zero, and the path itself will be tula and back. that is, 5 km and 5 km = 5 * 2 = 10 km.