Particles of masses 1kg and 3kg are at (10i-7j-3k)ms^(-1) and (7i-9j+6k)ms^(-1) then a instantaneous velociti of their centre of masses

Particles of masses 1kg and 3kg are at (10i-7j-3k)ms^(-1) and (7i-9j+6

1.	Particles of masses 1kg and 3kg are at (10i-7j-3k)ms^(-1) and (7i-9j+6k)ms^(-1) then a instantaneous velociti of their centre of masses
Answer» `(1)/(4)(31i-34j+15k)MS^(-1)` `(1)/(4)(30i-32j+15k)ms^(-1)` `(1)/(4)(25i-28j+15k)ms^(-1)` `(1)/(4)(31i-34j+20k)ms^(-1)` ANSWER :A