Question

物理题,帮忙解下嫦娥二号绕月卫星在离月球较远的圆轨道上运行时,离月球表面的距离为h1;在离月球较近的圆轨道上运行时,离月

Answer 1

a=kM/(R+h)^2

a=v^2/(R+h)

v^2=kM/(R+h)

E1:E2=v1^2:v2^2=(R+h2)/(R+h1)