Question

2. What are the forces acting on the ruler when it is balanced at
its centre of gravity?​

Answer 1

Answer:

gravitational force

Explanation:

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Answer 2

An object's weight is concentrated in its center of gravity.

The terms "center of gravity" and "center of mass" are interchangeable. The geometric center of mass of a symmetrical object is positioned at the item's center of mass. Whenever an object is placed on a pivot, the forces solely on a single side of the pivot should balance the forces on the opposite side of the pivot; otherwise, the object will not balance. If it is a solid, it will remain in the same location, but if it is a liquid or gas, it will shift, and the volume and mass on one side will increase. The center of gravity of an item in stable balance is at its lowest point.