Question

name a body whose centre of mass and centre of gravity are coincident ?
​

Answer 1

Answer:

If the gravitational field remains uniform over a space, i.e., field is independent of spatial position, the centre of mass and centre of gravity of a body in that space coincides. All parts of the body (however small) experiences same gravitational pull.hope this is helpful

Answer 2

Answer:

I think that it is a sphere of uniformly distributed mass