Four particles of masses $1\,kg, 2 \,kg, 3 \,kg$ and $4\, kg$ are placed at the four vertices $A, B, C$ and $D$ of a square of side $1\, m$. The coordinates of centre of mass of the particles are
Four particles of masses $1\,kg, 2 \,kg, 3 \,kg$ and $4\, kg$ are placed at the four vertices $A, B, C$ and $D$ of a square of side $1\, m$. The coordinates of centre of mass of the particles are
- A
$(0.3 \,m, 0.5 \,m)$
- B
$(0.5 \,m, 0.3 \,m)$
- C
$(0.2 \,m, 0.2 \,m)$
- D
$(0.3 \,m, 0.2 \,m)$
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