Particles of masses 1gm,2gm,3gm and 4gm are placed at x=1cm , x=2cm , x=3cm, x=4cm respectively. Then X_(cm)=

Particles of masses 1gm,2gm,3gm and 4gm are placed at x=1cm , x=2cm ,

1.	Particles of masses 1gm,2gm,3gm and 4gm are placed at x=1cm , x=2cm , x=3cm, x=4cm respectively. Then X_(cm)=
Answer» `1CM` `2cm` `3CM` `4cm` Answer :C