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| 1. |
Explain why the concept of centre of mass is muchmore fundamental than centre of gravity. |
| Answer» Solution :As the mass of a body remains constant anywhere in the UNIVERSE, a body always has a definite CENTRE of mass. But at places where there is no GRAVITY (e.g., in OUTER space, inside an artificial satellite rotating around earth or in case of a FREE falling object ), the weight of the body becomes zero i.e., there is no centre of gravity. Hence the concept of centre of mass is much more fundamental than centre of gravity. | |