Răspuns :
mai usor ar fi :
300 m : 6 sec = 50 m/s
1m/s = (1/1000) / (1/3600) km/h = 18/5 km/h
50 m/s = 50 x 18/5 = 10 x 18 = 180 km/ h
mai usor ar fi :
300 m : 6 sec = 50 m/s
1m/s = (1/1000) / (1/3600) km/h = 18/5 km/h
50 m/s = 50 x 18/5 = 10 x 18 = 180 km/ h