Question
Two particles of masses 100gm and 300 gm have position coordinates (2,5,13) and (-6,4,-2) respectively. Find the position coordinates of centre of mass.
Solution
The position coordinates of centre of mass are given by,
X =
Y =
Z =
Substituting the respective values, we get
Therefore, the position coordinates of centre of mass are (
)
X =
Y =
Z =
Substituting the respective values, we get
Therefore, the position coordinates of centre of mass are (
) 
