Odpowiedzi

2010-01-25T23:24:44+01:00
2010-01-25T23:26:19+01:00
S = S1 + S2
S1 = V1 x t/2
S2 = V2 x t/2
S = / V1 + V2/ x t/2
S = /60 + 50/ x t/2
S = 55 x t / km/
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ateb