I recently had my wisdom teeth removed, and it wasn't even the worst experience of my life, all thanks to the Novocain. My face was completely numb, couldn't feel a thing. It's not like I couldn't feel any forces though: I could tell that my cheek was being pulled to one side because my hole head felt the force of the pull, but I could not feel anything touching my cheek, an odd experience. And after the surgery I was touching my face a lot because touching your own face when it is numb is a very weird sensation, hard to describe. And this got me to realize that when something touches you, sometimes it is only sensory, without any feeling you wouldn't even feel the force. So I then thought: if you had no feeling in you at all, would you not know if you were being pushed? What let's you know that you are falling, I think there's something to do with your inner ear or something, but otherwise what? your sight of course. This is an interesting direction to take this in... So if you ever wondered what those blocks in physics problems feel on the daily, just imagine that you have no feeling anywhere in your body, no sight, no sense of anything and you're being pulled by some weird floating rope or sliding down a frictionless incline, how does that even happen anyways?