SilentSky23

Senior Members

49

1 Neutral

• Rank
Quark

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

1. Question about axis of rotation and center of gravity

No need to say sorry. I say I need to say that for not articulating the question well enough in the first place.
2. Question about axis of rotation and center of gravity

I will try next time. And no.
3. Question about axis of rotation and center of gravity

That should do, and if it didn’t, close enough. Thanks.
4. Question about axis of rotation and center of gravity

Sorry. I forgot to use center of gravity, and I did not understand how complex this was. For examples, what about a gymnast doing, well, a back flip or another gymnastics routine if that counts? That was mainly what I was going for, anyway. Also, forget center of gravity. Let's use center of mass for the question I was asking, instead.
5. Question about axis of rotation and center of gravity

What I was after was if anything rotation based in physics, like moment of inertia and such, is connected to center of gravity, to the point that anything rotation based changes when the center of mass changes. Like if the center of gravity is outside the body, mainly a non-rigid body, does anything like moment of inertia change as in become easier or harder. Why would it be hard to understand?
6. Question about axis of rotation and center of gravity

My bad, I should have known that not all rotations act through the center of mass, something I learned by looking up before you made this post. I should have thought this more carefully before I made this topic. Maybe I was not talking about axis of rotation, but maybe moment of inertia? If moment of inertia has anything to do with center of gravity, does moment of inertia change when the center of gravity changes? Either way, I am interested in the part of your post I bolded. Can you please tell me more, if you can?
7. Question about axis of rotation and center of gravity

Isn't the external force just the cause of rotation, though? Rather than the line acting through a point in the body? I thought those were two different things. The line part was what I meant by axis of rotation.
8. Question about axis of rotation and center of gravity

Yeah, I wasn't really talking about external forces here.
9. Question about axis of rotation and center of gravity

I only said the through the center of gravity part because I kept reading that online and in books. At least for the human body int he pelvic area. Maybe I phrased it wrong, and meant intersect at the center of gravity? If that means anything? Or is the line through the center of gravity?
10. Question about axis of rotation and center of gravity

Now, if I am not mistaken, from what I know, the axis of rotation of a body usually goes through the center of gravity of a body. Also, the position of the center of gravity, if I recall correctly, does change when the position of the body of the living being or object in question changes. Well, just to make sure, I must ask: would the location of the axis of rotation change if the position of the center of gravity changes as well?

To be honest, being told which would stop first; that is actually all I need.

So, are you expecting numbers? I am kinda having trouble understanding what you want from me when talking about this situation. If surface level and air resistance and such aren't going to be enough here as it may seem, tell me, what should I tell you, especially for next time when I do ask something like this, just to be safe?

I did say the type of surface, which is wooden. Not to mention smooth. As for the other things, say the air resistance is normal, or the usual amount in everyday life (nothing too strong) with no wind, and the level of the surface is, well, flat. Anything else you need to know?