Question

Two bodies of masses 1 kg and 3 kg have position vectors
i + 2 + k and -3î - 2 + k, respectively. The
centre of mass of this system has a position vector
(2) -21 - ; + k. (b) 2 - 1 tk
(0) 1 + i + k (d) - 2 + 26​

Answer 1

Answer:

I don't know about this

Answer 2

use formula Xcm=m1x1+m2x2/m1+m

similarly you can Y cm and Zcm