水對(duì)容器底的壓強(qiáng)為:p=ρgh=1.0×103kg/m3×9.8N/kg×0.25m=2450Pa;
容器底面積S=50cm2,=0.005m2;
∵p=
F |
S |
∴水對(duì)容器底的壓力為:F=pS=2450Pa×0.005m2=12.25N;
(2)容器對(duì)地面的壓力為:F=G=mg=2kg×9.8N/kg=19.6N;
容器對(duì)地面的壓強(qiáng)為:p=
F |
S |
19.6N |
0.005m2 |
答:(1)水對(duì)容器底的壓力為12.25N;壓強(qiáng)為2450Pa;
(2)容器對(duì)地面的壓力為19.6N;壓強(qiáng)為3920Pa.