Physics
With respect to centre of gravity, which of the following statements are correct?
- The position of centre of gravity depends on its shape.
- It is not necessary that the centre of gravity of a body should always be within the material of the body.
- A body of weight W can be considered as a point particle of weight W at its centre of gravity.
- All of the above
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Answer
All of the above
Reason — With respect to centre of gravity :
- The position of centre of gravity depends on its shape i.e., on the distribution of mass.
- It is not necessary that the centre of gravity of a body should always be within the material of the body.
- By the concept of centre of gravity, a body of weight W can be considered as a point particle of weight W at its centre of gravity.
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