Question

Where would you expect to find the centre of gravity of a plastic ruler?

Answer 1

You would normally find the center of gravity in the middle of the ruler. Example: the ruler is 1 foot long, the center of the gravity would be a 6 inches.

Answer 2

At center of ruler.

Step-by-step explanation:

The center of gravity is defined as the point at which the object can be balanced. Due to different structure, weight and size, center of gravity changes from object to object.

In this case we have a plastic ruler which has a homogeneous structure, that means its weight is equally distributed through out. So its center of gravity must be at a point which is at equal distance from the both ends ( center ).