Odpowiedzi

2010-03-25T21:56:22+01:00
A = F:m
m = F:a

m = 12N:2,5m/s²
m = 4,8kg
2010-03-25T21:57:05+01:00
F=am/:a
m=F/a
m=12N/2,5m/s2
m=4,8kg