Odpowiedzi

2010-03-09T22:04:45+01:00
Ciągnik 1000m: 20km/h= 30min
mucha 1000m : 2m/s=500s=8 min 20s
ryba 1000m : 2,5m/min =400min=6h 40 min
robot 1000m :50cm/min =2000min=33h 20 min
1 1 1
2010-03-09T22:12:17+01:00
1000 m = 1 km
h= 60 min
60 min:20= 3 min

1000 m:2 m= 500 m
500 s:60= 8 min 20 s

1000 m : 2,5= 400 m
400 * 60s = 24000 s:60 =400 min

1000 m- 100000 cm
100000 cm:50 = 2000 cm
2000 min