You can use plumb lines to find its center of gravity.
Hold it from one point and draw vertical line in direction of gravity (plumb line). Hold it from another point and do the same, and a third point if necessary; where the lines cross is center of gravity
Finding the center of gravity of an irregularly shaped object can be done using the plumb line method.
ways of locating center of gravity?
Secret
Friend Hilmar Zonneveld is perfectly and absolutely right. Weight, being a vector, of an object will always act through the center of gravity. Also definition of centre of gravity confirms that whatever be the position the weight would always act through a point known to be center of gravity
Archimedes did.
See where the object is in balance over a straight edge. The center of gravity is on the plane that the edge bisects through the object. Repeat with the object at different orientations to the straight edge. The center of gravity is the point where the planes all intersect.
Answer: You find the volume of an irregularly shaped object by water displacement. Answer: Another method is to use integration, which means that for purposes of calculation, the object is divided into lots of small pieces, for example, rectangular-shaped pieces.
triple beam balance ,
First, you need to get a graduated cylinder filled up with water and record the volume.Next, you put an irregularly object into a graduated cylinder fill with water. Then, you measure the volume of the graduated cylinder with the irregularly shaped object in it.Finally, you subtract the highest volume which was the volume of the graduated cylinder with the irregularly shaped object in it by the regular volume of the graduated cylinder which is the smallest volume and there's your answer.
Volume of liquid
Yes. Any irregularly shaped object's center of mass can be located outside of its physical shape. Think of an asteroid shaped like a boomerang - the center of mass would be somewhere in the space between the 'arms'.
You can use water displacement.