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

Two particle of mass 1 kg and 2 kg are located at x = 0 and x = 3 m. Find the position of their centre of mass.

Two particle of mass 4 kg & 2kg are located as shown in figure then find out the position of centre of mass.

Two bodies of masses 10 kg and 20 kg are located in x-y plane at (0, 1) and (1, 0). The position of their centre of mass is

Two bodies of masses 10 kg and 20 kg are located in x-y plane at (0, 1) and (1, 0). The position of their centre of mass is

Particles of masses 1kg and 2kg are at (i+2j+3k) m and (-2i+4j+2k)m then instantaneous position of their centre of mass is