1、物体的下表面距离水面10cm+2cm=12cm=0.12m,
下表面受到的压力F=p水ghS=1x10^3kg/m^3x10N/kgx0.12mx(0.1mx0.1m)=12N
2、物体所受浮力F浮=p水gV排=1x10^3kg/m^3x10N/kgx(0.1mx0.1mx0.1m)=10N
1、物体的下表面距离水面10cm+2cm=12cm=0.12m,
下表面受到的压力F=p水ghS=1x10^3kg/m^3x10N/kgx0.12mx(0.1mx0.1m)=12N
2、物体所受浮力F浮=p水gV排=1x10^3kg/m^3x10N/kgx(0.1mx0.1mx0.1m)=10N