Say, there are multiple moments (M1, M2, M3) acting on a body (of irregular shape) at points P1, P2, P3 respectively. The body is free to rotate about any point.
Now, which resultant center (the point which is not rotating at all, in the world frame atleast) does the body rotate about in this state?
- They are pure moments, and cant be expressed as forces, which is usually what I see in books
- Resultant moment is simple to calculate using vectors, but it doesnt give the position of the resultant moment
- Does a free body always rotate about its center? (In which case I am totally approaching it in a wrong way)
- Does it work the same way as finding the center of mass for multiple point masses? This is my best guess, but I am not sure.