So I know that a few of these questions have been posted previously but I also understand that each circumstance is different in regards to each aspect so I figured I would post the question and see if anyone can assist me at all. Whether it be out of the goodness of your heart or in exchange for some type of info that I may have I don't mind. But anyways.... I was involved in a car accident in my office parking lot. I was backing out of my spot and was hit right behind my rear wheel at a 90 degree angle and pushed 79.5 inches (from the rubber marks from my vehicle) with my car coming to a stop at roughly a 150 degree angle and hers remaining at the same angle of collision which was a 90 degree impact. My vehicle has an approximate weight of 3,439 lbs and the other drivers vehicle weighs roughly 4,425 lbs according to specs. My car did not move completely straight obviously, it followed a curve similar to that of a clock (assuming main pivot point is the front of my vehicle) The other vehicle left no skid marks as she did not even apply her brakes. Is there any formula that can be used to estimate her vehicles speed assuming that we don't include the lost energy due to my rear quarter caving in (her vehicle had nearly no damage). If there are multiple formulas does anybody know which one would be best? Thank you in advance for any help you may have. I am primarily trying to figure out whether it will be something that I should hire a legit accident investigator for. Thank you again!