GMm/(R+h)^2=mv^2/(R+h) v=√GM/(R+h) ω=v/(R+h)=√GM/(R+h)^3 a=v^2/(R+h)=GM/(R+h)^2 GMm/R^2=mg GM=R^2g代入上式得v=√R^2g/(R+h) ω=v/(R+h)=√R^2g/(R+h)^3 a=v^2/(R+h)=R^2g/(R+h)^2 请你及时采纳.有问题及时...那周期该怎样表示呢T=2π(R+h)/V,把上面二个V的表达式代入即可。自己整理一下好吗？平时还是要多练习提高运算速度。