In the absence if any other information, it would be about an axis through the mass centre, but that still leaves open more than one possibility. If it is essentially a 2D shape I suggest an axis normal to that.Hoshiiiiiiiiiiiii said:
The image us not working for me. Nothing happens when I click the icon.Hoshiiiiiiiiiiiii said:
I edited my reply. I think it's working now.haruspex said:
Yes, I see it now.Hoshiiiiiiiiiiiii said:
haruspex said:
AS far as I am aware, a centroidal axis is any axis that passes through the centroid. See e.g. https://www.quora.com/What-is-the-difference-between-Neutral-axis-and-Centroidal-axis.Benjamin_harsh said:
Moment of inertia is a measure of an object's resistance to changes in its rotational motion. It takes into account an object's mass, shape, and distribution of mass relative to its axis of rotation.
While mass is a measure of an object's resistance to linear motion, moment of inertia is a measure of its resistance to rotational motion. In other words, mass describes the amount of matter in an object, while moment of inertia describes how that mass is distributed in relation to its axis of rotation.
The formula for moment of inertia is I = mr², where I represents the moment of inertia, m is the mass of the object, and r is the distance between the object's axis of rotation and the mass. This formula is used for calculating the moment of inertia for a point mass, while more complex formulas are used for objects with a larger or irregular shape.
The moment of inertia affects an object's rotational motion by determining how much torque is required to produce a certain amount of angular acceleration. Objects with a higher moment of inertia will require more torque to achieve the same angular acceleration as objects with a lower moment of inertia.
The moment of inertia can be changed by altering an object's mass, shape, or distribution of mass. For example, bringing mass closer to the axis of rotation will decrease the moment of inertia, while moving it further away will increase it. Changing an object's shape can also have an impact on its moment of inertia.
