Looking again I think she got spun by the pink and white car. Going backwards she lost downforce and even got lift so she could not slow down like the other cars. Then she hit the back tire of the yellow and white car. The back of the rear tire is moving upward and likely launched her car into the air when her car contacted it. If it was tore-tire contact, the grip is even more and will really launch a car.
I looked several more times and it looks like the back of her car hit the right front tire of the yellow and white car because it had the suspension broken going into the turn.
D9nt guess. Look it up.