GMm/(H+R)^2=mv^2/(R+H),GM=g*R^2
a=g*R^2/(R+H)^2
T=2π/√（gR^2/(H+R)^3)
w=√（gR^2/(H+R)^3)
v=√（gR^2/(H+R)^3)(H+R)
若还不懂Hi我下.