V排=V×(1-2/5)=1000cm�0�6×0.6=600cm�0�6=0.0006m�0�6受到的浮力F浮=ρ水V排g=1000Kg/m�0�6×9.8N/Kg×0.0006m�0�6=5.88N漂浮时浮力等于重力G=F浮=5.88Nm=G/g=5.88N÷9.8N/Kg=0.6Kg=600g密度ρ=m/V=600g÷1000cm�0�6=0.6g/cm�0�6
