If the leading edge of the vehicle sits higher than the pedestrians center of mass, an impact will result in a forward projectionist trajectory. This trajectory is common in high forensic vehicles, such as buses, trucks and SUVs or with shorter pedestrians.
If the leading edge of the vehicle is above or at the pedestrian’s center of mass, then the pedestrian is going to tend to project away from the vehicle or rotate away from the vehicle. This trajectory is common in vehicles low leading edges such as sedans and coupes.
Note that in a wrap trajectory there are separate and distinct impacts with the pedestrian and the vehicle, such as on the pedestrian’s leg, hip, shoulder and head. In a wrap trajectory, I would expect to see damage basically going from the bumper of the vehicle onto the hood and depending on the speed also on the windshield and potentially the roof.
The key difference is really where the leading edge of the vehicle contacts the pedestrian in relationship to that pedestrian’s center of mass.
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