m/s is the best, everyone know aprox. what is an meter and an second to know the velocity, but not so easy with km and a hour.. 50km/h seems slow, but not so 13 m/s.
m/s is the best, everyone know aprox. what is an meter and an second to know the velocity, but not so easy with km and a hour.. 50km/h seems slow, but not so 13 m/s.