初三物理题急求答案。

从g = mg:g ice = m ice g = 0.02kg x 9.8n/kg = 1.96n∴f ice = g ice = 1.96n

从P= ρgh: p饮料=ρ饮料x g x h饮料=950kg/m？x 9.8N/kg x 0.1m = 931Pa

From P=F/S: f饮料=P饮料xS=931Pa x 0.005m？= 4.655牛顿

F总=F冰+F饮料= 4.655n+1.96n = 6.615n。