center of mass Synonyms

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