| S.No | Shape of body | Position of center of mass |
|---|---|---|
| 1. | Uniform rod | Centre of rod |
| 2. | Plane rectangular or square lamina | Point of intersection of diagonals |
| 3. | Plane triangular lamina | Point of intersection of the medians of the triangles |
| 4. | Uniform circular ring | Centre of ring |
| 5. | Uniform circular disc | Centre of disc |
| 6. | Uniform solid sphere | Centre of the solid sphere |
| 7. | Uniform hollow sphere | Centre of the hollow sphere |
| 8. | Uniform hollow cylinder | Mid point of the axis of the hollow cylinder |
| 9. | Uniform solid cylinder | Mid point of the axis of the solid cylinder |
| 10. | Rectangular or cubical block | Point of intersection of diagonals |
| 11. | Pyramid or cone | On the line joining the centre of the base to the apex. It is at a distance of '3h/4' from the vertex where 'h' is the height of the cone. |