Odpowiedzi

2009-11-02T17:51:33+01:00
F1=60kg
F2=50kg
F1 * r1 = F2 * r2
r1+r2=3m
r1=3m-r2
r1/r2=F2/F1
r1/r2=5/6
6r1=5r2
6(3m-r2)=5r2
18m-6r2=5r2
18m=11r2
r2=1 i 7/11m
r1=3m-1 i 7/11m = 1 i 4/11m
1 1 1