center of mass Synonyms

centre of mass equilibrium point big challenge basic task basic purpose basic premise basic objective basic necessity basic goal basic aim mass centre gravity centre big complication big concern center mass biggest goal biggest aim big worry big stumbling big prob big obstacle big headache big dilemma big difficult gravity center big question biggest problem key issue centroidal Central Point barycentre centre of gravity center of gravity barycenter basic principle orthocenter centroid big difficulty big problem fundamental question basic mission main focus major problem major issue main problem important issue crucial problem mass center basic question centre