Clear the memory, or, kill all the variable definitions

kill( all ) ;

equilibrium equations for the quarter
(simplified) ladder frame chassis

eqtx : UA = 0 ;

eqty : VD = 0 ;

eqtz : WA + WD - F = 0;

eqrOx : - F * c + WD*(b+e) + ThetaD = 0;

eqrOy : PhiA - WA*a + F*a = 0;

eqrOz : 0 = 0 ;

define a list of equations and a list of unknowns

eqlst : [ eqtx  , eqty  , eqtz ,
          eqrOx , eqrOy , eqrOz ] ;

unlst : [ UA , WA , PhiA , VD , WD, ThetaD ];

solve the linear system of equations

linsolve( eqlst , unlst ) ;

there is one dependent equation, so I'm unable to solve 
the problem of obtaining all the reaction forces/moments by equilibrium alone

unlst_red : [ UA , WA , PhiA , VD , WD];

sols : linsolve( eqlst , unlst_red ) ;

implicit evaluation

WA     ,sols ;

explicit evaluation

WA : ev ( WA , sols  ) ;

WA;

WA , [ c=1200*mm, 
      F= 1000*N , ThetaD=0.23 *N*mm, 
      b= 1000*mm];