写错字了···表兄早仿在意哈,图中羡纤应为“此题睁消无摩擦力”、“可将两个····”
不对伏逗枯,我再想想吧(m1-m2)g=(m1+m2)a1m1g-T=m1a12T=Ma2这三个联指郑立a2即为所缺洞求