Odpowiedzi

2009-12-21T20:28:38+01:00
S1 = 200 m
t1 = 300 s
s2 = 300 m
t2 = 200 s
v1 = s1 / t1
v2 = s2 / t2
v1 = Ob1 / T
v2 = Ob2 / T
s1 / t1 = Ob1 / T
s2 / t2 = Ob2 / T
s1 / t1 = (Ob1 * s2) / (Ob2 * t2)
2/3 = 3/2 * (Ob1 / Ob2)
4/9 = Ob1 / Ob2
Ob1 = 4/9 * Ob2
2*π*r1 = 4/9 * 2*π*r2
r1 = 4/9 * r2
1 5 1