A decent runner should be able to run 5km in half an hour, or less.
allthetests.com/quiz32/quiz/1444153790/Are-you-a-fast-runner
Six minutes per km
50 km
About 16.1 km
5/7 of an hour
It takes 3.33 minutes or 3 minutes 19.8 seconds to run 1km at a pace of 18 km/h
Just over 6½ minutes.
Anything between 4 minutes to 8 minutes.
Try it, even cars take 2.4 hours
fast a lean black bear can run up to speeds of 30 km/hour for short distances.
10 km
The Andes mountain range is about 7,000 km (4,300 mi) long.
The tunnel is 50.5 km long (31.4 miles). of which 37.9 km. (23.5 miles) is below the seabed.