question_answer

Four particles of masses \[{{m}_{1}},\]\[{{m}_{2}},\]\[{{m}_{3}}\] and \[{{m}_{4}}\] are placed at the vertices A, B, C and D as respectively of a square shown. The COM of the system will lie at diagonal AC if

A) \[{{m}_{1}}={{m}_{3}}\]       

B)        \[{{m}_{2}}={{m}_{4}}\]

C) \[{{m}_{1}}={{m}_{2}}\]       

D)        \[{{m}_{3}}={{m}_{4}}\]