Question

With respect to centre of gravity, which of the following statements are correct?
(a) The position of centre of gravity depends on its shape.
(b) It is not necessary that the centre of gravity of a body should always be within the material of the body.
(c) A body of weight W can be considered as a point particle of weight W at its centre of gravity.
(d) All of the above

April 5, 2024

Answer

(d) 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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