for as long as you take care of it.
It would take ~6.67minutes to run 1km at 9kmh.
It depends on how fast you run
It depends on how fast you can run and for how long you can sustain that speed.
It is impossible to run that fast, but if it were, it would take 2 hours.
It depends how fast u can run
Scotland
22.5 seconds.
11.32 minutes
10 seconds
#3 Years
6 months