求解 初二物理
展开全部
甲的重力G1=m1g=h1S1pg;乙的重力G2=m2g=h2S2pg;h1=4h2;
甲对乙的压强p1=F1/S1=G1/S1=h1S1pg/S1=h1pg;
乙对地面的压强P2=F2/S2=(G1+G2)/S2=(h1S1pg+h2S2pg)/S2;
P1=P2,h1pg=(h1S1pg+h2S2pg)/S2;h1pg=h1S1pg/S2+h2pg;
两边同时除以h1pg,1=S1/S2+h2pg/h1pg,S1/S2=1-h2pg/h1pg=1-h2/h1=1-1/4=3/4
甲对乙的压强p1=F1/S1=G1/S1=h1S1pg/S1=h1pg;
乙对地面的压强P2=F2/S2=(G1+G2)/S2=(h1S1pg+h2S2pg)/S2;
P1=P2,h1pg=(h1S1pg+h2S2pg)/S2;h1pg=h1S1pg/S2+h2pg;
两边同时除以h1pg,1=S1/S2+h2pg/h1pg,S1/S2=1-h2pg/h1pg=1-h2/h1=1-1/4=3/4
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询