F1/F2= L2/L1
F1 = F2*L2/L1 = 4*4/2 = 8 кг
Ответ:8 кг
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F1/F2= L2/L1
F1 = F2*L2/L1 = 4*4/2 = 8 кг
Ответ:8 кг