Odpowiedź :
a) wyraz w metrach na sekundę:
120cm/min = 0,02 m/s
b) wyraz w kilometrach na godzinę:
30km/h =30km/h
125km/s=450000 km/h
10m/s=36 km/h
25m/min =1,5 km/h
chodzi o zamiane
np.150km/min=2500m/s
120cm/min = 0,02 m/s
b) wyraz w kilometrach na godzinę:
30km/h =30km/h
125km/s=450000 km/h
10m/s=36 km/h
25m/min =1,5 km/h
chodzi o zamiane
np.150km/min=2500m/s
120cm/min=1,2/60 m/s = 12/10*1/60 m/s=1/50 m/s
1m=100cm
1min=60s
120cm=1,2m
125km/s = 125/ 1/3600 km/h= 125*3600 km/h= 450000km/h
1h=3600s /:3600
1/3600h=1s
10m/s =1/100:1/3600 km/h= 1/100*3600/1=36 km/h
1km=1000m
10m:1000=0,01km=1/100km
1s=1/3600h
25m/min = 1/40:1/60 km/h= 1/40*60/1 km/h=3/2 km/h= 1,5 km/h
25m:1000= 25/1000km= 1/40 km
1min:60=1/60h
1m=100cm
1min=60s
120cm=1,2m
125km/s = 125/ 1/3600 km/h= 125*3600 km/h= 450000km/h
1h=3600s /:3600
1/3600h=1s
10m/s =1/100:1/3600 km/h= 1/100*3600/1=36 km/h
1km=1000m
10m:1000=0,01km=1/100km
1s=1/3600h
25m/min = 1/40:1/60 km/h= 1/40*60/1 km/h=3/2 km/h= 1,5 km/h
25m:1000= 25/1000km= 1/40 km
1min:60=1/60h