Question

If two points masses are placed at (+ 2m), and (-2m) is ft necessary that the centre of mass of system must lie at origin?

plz help​

Answer 1

Answer:

No, not necessarily

Explanation:

The center of mass of two bodies of equal mass would be in the center of the line joining them. In this case, the C.O.M would be at origin.

But, if the masses are different, then the C.O.M would deviate a bit to the point mass which has higher mass. In this case, C.O.M will definitely not be at origin.

Hence, C.O.M doesn't need to be at origin in the given conditions of the question.

Hope it helps!