Q:

Clarification on circular motion and pseudo-forces

The way i interpret pseudo-forces is that its a mathematical correction that makes the conclusion of the observer in an accelerated frame correct.
And I also believe that this "pseudo-force" has no physical significance, that is, it isn't something actually acting on the body being observed.
While doing circular motion problems, while analyzing from the rotating frame, we add a pseudo-force in the outward direction.
Now, we *actually do feel an outward force * when we are in circular motion, (like when we are taking a turn on the road) and I have seen many textbooks attributing this to the "centrifugal force", which I believed to be simply a pseudo-force and thus, is not something that is physically affecting a body.
What is the correct explanation to this problem?
edit: I think I somewhat got the idea, but I still don't feel I can generalize it to other situations, like:
1)A liquid in a rotating tube (in a horizontal plane) moves Outwards
2)Suppose a block is kept on a rough rotating table,(the block also rotates).We say that friction provides the centripetal force.
But say the angular speed is such that friction becomes insufficient to provide the force, and the block moves outwards. Also, from an inertial frame, if friction is acting towards the center, it means the body has a tendency to move away from the center.
Can these two situations be explained by the same, inertia arguement?

A:

You are correct that pseudo-forces can be viewed as a mathematical correction to allow for Newton's second law to work in non-inertial reference frames, and I tend to think of it as such most of the time. However, really these pseudoforces are the effects of inertia. They aren't forces, but they still are a property of matter.
I would argue then that you really do "feel" pseudoforces due to your own inertia. You have already given the example of circular motion. Another example is when you go upward in an elevator you feel heavier for a little bit, and then when the elevator slows down you feel lighter for a little bit. Sure these effects are not forces (as they do not follow Newton's third law), but they still are "real" in terms of they arise from something physical.
I don't think there is any law saying forces are the only thing you can "feel". Especially if your body is actually in a non-inertial frame of reference.

