Physics say her *** should have been pulled forward while the rest of her body was decelerating (still moving forward though). In turn, one would think she would have been thrown upward by the a bit by the wheel and then fallen backwards.
Yes, you're correct with the Physics on that. Somehow I was imagining the wheels would be turning the opposite direction than they actually do. I had to grab my son's Hot Wheels to help me get it. Ha ha....Hands on learning.