Odpowiedzi

2009-12-07T17:28:09+01:00
S = 120m = 0,12km
v = 108km/h = 30m/s
t = ?
t = s/v
t = 120m : 30m/s
t = 40s
1 4 1
2009-12-07T17:32:14+01:00
S = 120 m
v = 108 km/h= 30 m/s

t = s/v
t = 120 : 30
t = 4sekundy
2 5 2