55-4地球自转的动力学效应 mr=mg-2m×F′ AL 0=-ocos hi +osin nk mx=2maysin n my=-2mo(isin a+icos a) mi=-mg +may n 0= y=0 h ⅸ=j==0§5-4 地球自转的动力学效应 mr mg m r        = − 2    i k     = −cos +sin  ( )      = − + = − + =        2 cos 2 sin cos 2 sin mz mg m y my m x z mx m y        t = 0 x = y = 0 z = h x  = y  = z  = 0