Question

A body is situated on the earth in stable equilibrium. If a light push is applied on the body, what will be initial position of the centre of gravity?

(a) near the earth surface

(b) at some height from earth’s surface

(c) will remain unchanged

(d) will be at same level.

Answer 1

Correct option is : (b) at some height from earth’s surface

In stable equilibrium, centre of gravity is at minimum distance from earth. When the object is slightly pushed, then it becomes in unstable equilibrium, therefore its centre of gravity rises by some extent.

Hence, option (b) is correct.