Give the location of the centre of mass of a (i) sphere, (ii) cylinder, (iii) ring, and (iv) cube, each of uniform mass density. Does the centre of mass of a body necessarily lie inside the body ?

Give the location of the centre of mass of a (i) sphere, (ii) cylinder

1.	Give the location of the centre of mass of a (i) sphere, (ii) cylinder, (iii) ring, and (iv) cube, each of uniform mass density. Does the centre of mass of a body necessarily lie inside the body ?
Answer» Solution :The GEOMETRICAL centre of each. No, the CM may lie OUTSIDE the body, as in case of a ring, a HOLLOW sphere, ahollow cylinder, a hollow cube ETC.