Two particles of mass 2 kg and 1 kg are located at r = 0 m and r = 3 m. Find the position of centre of mass.

Answer

x = 1m

Explanation

`r_(1)=x and r_(2)=3-x`
`r_(1)/r_(2)=m_(2)/m_(1)`
`x/(3-x)=1/2" "rArr" "2x=3-x" "rArr" "x=1m`