Why Must The Intersection Of The Three Lines On An Irregular Shaped Lamina Be The Centre Of Gravity?


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Sana Rashid answered
One reason is that the center of gravity of an object always orients itself with minimum potential energy on a vertical line below the support point.
Try understanding this: Remember that the object is in equilibrium when it hangs below its suspension point and an object is in equilibrium if it is supported at its center of gravity, at a point directly above its center of gravity or at a point directly below its center of gravity. That is why the intersection of the three lines on an irregular shaped lamina is the Center Of Gravity.

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