The co - ordinates of centre of mass of particle of mass 10, 20 and 30 gm are (1, 1, 1) cm. The position co - ordinates of mass 40 gm which when added to the system, the position of combined centre of mass be at (0, 0, 0) are,

The co - ordinates of centre of mass of particle of mass 10, 20 and 30

1.	The co - ordinates of centre of mass of particle of mass 10, 20 and 30 gm are (1, 1, 1) cm. The position co - ordinates of mass 40 gm which when added to the system, the position of combined centre of mass be at (0, 0, 0) are,
Answer» (3/2, 3/2, 3/2) `(-3//2, -3//2, -3//2)` (3/4, 3/4, 3/4) `(-3//4, -3//4, -3//4)` ANSWER :B