When you are in a command that asks you to select a point, Shift-right-click and select Geometric Center from the Osnap menu. You can also type Gcen↵. Place the cursor on the closed polyline or spline, and the Geometric Center osnap marker appears at its geometric center.

The center of gravity can be located within or outside the body depending on the bodys configuration and position; it is inside an object when the object is uniform and outside the object when it is not uniform. It is the point of exact center, around which the body may rotate freely in all directions.

Mention any 4 characteristics of centre of mass

• the centre of mass of a system of particles depends only on the masses of the particles and their relative positions .
• son of moments of masses of the system about centre of mass is zero.
• for a continuous distributed mass object it depends on the shape and its mass distribution.

Mass elements are primitive parametric objects that have specific shapes, such as arch, box, cylinder, and gable. They function as the building blocks of conceptual design (also schematic design) in AutoCAD Architecture.

MASSPROP Command To use this command, type “MASSPROP” on the command line and press Enter. Then select the object from the drawing area and press Enter again. You will see that a list will pop up above the command line with all of the object’s properties, as shown in the image below.

Help

1. Click Content tab Calculation panel Moment of Inertia.
2. Select the object to which you want to calculate the moment of inertia, and press Enter.
3. Check to see whether the area of the object is filled correctly.
4. Specify a direction for the load forces.
5. Enter a text for the description of the moment of inertia block.

How do you find the center of mass in AutoCAD?

1. Select the 3D Solid object.
2. Right-click. Click Convert to > Mass Element.
3. Enter Yes on the command line to erase the selected object.
4. Press ENTER, or enter N to name the mass element.