The developing countries bear a large share of burden and account for about 85% of the deaths as a result of road traffic crashes. So, the problem of road traffic accidents is becoming recognized concern. Motor-vehicle accidents are complex events resulting primarily from human, technical, and environmental contributing factors. Identification of the most probable factors that affect accident severity is the basis for effective road traffic accident prevention.
In science, the publication and presentation on the findings or ideas is the main step for generalization of new knowledge and support the development of the scientific community. An important problem that has been detected for a long time is an unethical practice, namely "plagiarism".
In this paper we would put a mathematic relation between the displacement(x2) of penetration of the lunched bullet inside the victim and the displacement(x1) in air before impact. The cardinal achievement of the article is that we use the physical definition of the inertial own mass of the matter as defined in the paper published by the author in 2014 under the title; physics of the giant atom [5].
