Centre of Gravity Definition Finding the centre of gravity Stability

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Presentation transcript:

Centre of Gravity Definition Finding the centre of gravity Stability Everyday examples

What is meant by centre of gravity?

A point where the whole weight of the object may be considered to act Centre of Gravity A point where the whole weight of the object may be considered to act

If an object is supported at its centre of gravity, it is balanced.

How do we locate the centre of gravity of an object?

Regularly-shaped objects The centre of gravity is at its geometric centre.

Regularly-shaped objects The centre of gravity is at its geometric centre.

Is the centre of gravity always found on the object itself?

The centre of gravity does not have to be on the body of the object.

How do we locate the centre of gravity of irregularly-shaped objects?

If an object is hanged at one point, the string hangs such that the line passes through its centre of gravity.

Let’s try finding the center of gravity of a laminate.

Stable Equilibrium If an object is slightly displaced, it goes back to its original position.

If an object’s center of gravity is above its support, then the object is stable.