The force of impact in a high speed collision - NITSA as I recall classifies a high speed collision as being over 8 miles per hour - and its effects on people in the collision has as a minimum the following variables to review: (1) the age of the person and the persons physical conditioning; (2) the restraint system; (3) crumple zones in the vehicle; (4) the awareness of the people, i.e. have they braced for the impact.
Here is a link to research. I encourage anyone interested in the subject to look into a career in it.
Collision Safety Institute | Biomechanics:
'via Blog this'
R K Prater -770-253-7778