Could you explain to me how it is possible to run a distance of 1.0 km and have zero displacment.

2 answers

Run one lap around a 1 km track, or two laps around a 500 m track. You will end up where you started.

It will be hard to find such a track, however. Most tracks for running are 400 meters or 1/4 mile. Most horse racing tracks (in the USA) are one mile.
I kind of get it.

So. It is possible to run a distance of 1.0 km and have zero displacement by ending up where you started in the first place?????