Step-by-step explanation:
velocity or speed is defined as ratio
distance traveled / time traveled
typical normed speed ratios are
meters per second (m/s), feet per second (f/s or fps), kilometers per hour (km/h), miles per hour (m/h or mph), ...
so, it is not clear here, if we need to bring the ratio in our given situation into any of these normed forms.
basically, the velocity here is given as
600 m / 5 min = 600/5 m/min = 120 m/min.
now we could bring this e.g. to m/s (1 minute = 60 seconds) :
120 m/min = 120/(1×60) m/s = 120/60 m/s = 2 m/s.
or we could bring this to km/h. remember, 1 km = 1000 m, 1 hour = 60 minutes.
120 m/min = 60×120 m/(1×60) min = 7200 m/60 min =
= 7200 m/h = 7.2 km/h
please consider : these are all the exact same velocity. they are just different forms of expressing it.
remember, velocity is a ratio.
and with any ratio we have e.g.
3/2 = 6/4 = 510/340 = ...
they are all the same ratio.