  The article presents a proposal to contextualize the study of movement in
first courses of university physics, as a contribution to decision-making in
situations of a social nature. For this, the case of the use of kinetic impact
projectiles and the actual data provided by official sources is considered.
This information is used in an object motion model describing the kinematic
characteristics of a spherical projectile (a rubber bullet). For these
purposes, a number Reynolds Re >> 1 was used, which allows applying a nonlinear
motion equation to find the velocity and impact energy per unit area of
projectile. Results and analysis of this model can generate an interesting
discussion in the classroom about the need to build protocols for the use of
kinetic impact projectiles, and the importance of using scientific knowledge in
social conflicts.
