My wife was involved in an auto accident and the state DPS was unable to determine the speed of the other vehicle. The impact occurred at an intersection when my wife was making a left hand turn. In the middle of the turn is when she noticed the truck coming up the hill at her. She swerved back into her lane to avoid getting hit. At the same time the driver of the truck made a snap decision to go around her and swerved into her lane. She was then hit head on. Thanks to the safety features of her car she came out with only some cuts and bruises. Question is how fast does force A weighing 5000lbs have to go to impact object B traveling 3mph weighing 3583lbs and move it 50 feet? I know there are several other variables that will affect the outcome but this is the short and the sweet of it. I sure hope someone can help me out here. Thanks.