6km/h= m/s 3km/h= m/min 7m/min= m/s 14m/s= km/h

6km/h= m/s 6 *1000m/3600s=10/6 m/s =5/3 m/s 3km/h= m/min 3*1000/60=3000/60=50m/min 7m/min= m/s 7/60 m/s 14m/s= km/h 14 *1/1000*1/3600=14/3600000=7/1800000 km/h

6km/h=6×(3600/1000)=6×3,6=21,6m/s 3km/h=3(60/1000)=3×0,06=0,18m/min 7m/min=7(60/1)=7×60=420m/s 14m/s=14(1000/3600)=3,8km/h

a) 6km/h= 6000m/h = 6000m/3600s =60m/36s =5m/3s = 1⅔m/s 1km = 1000m, 1h = 60min = 3600s b)3km/h= 3000m/h = 3000m/60min = 50m/min c)7m/min= 7m/60s = 7/60 m/s d)14m/s= 0,014km/s = 0,014km : (1/3600)h = (0,014*3600) km/h = 50,4 km/h 1m = 0,001km 14 m = 0,014km 1 s = 1/3600 h