设木块体积是V=V排+V露
漂浮,F浮=G
即p水gV排=p木gV=p木g(V排+V露)
1.0g/cm3*V排=0.6g/cm3*(V排+V露)
0.4V排=0.6V露
V排:V露=0.6:0.4=3:2