物理教育用动能冲击弹的真实运动分析
Motion analysis of kinetic impact projectiles for physics education in real context
摘要：
本文提出了一个建议，将运动的研究放在大学物理的第一门课程的背景下，作为对社会性质的情况下决策的贡献。为此，考虑了使用动能撞击弹的情况和官方来源提供的实际数据。该信息用于描述球形弹丸（橡胶子弹）运动学特征的物体运动模型中。为此目的，使用了雷诺数Re >> 1，这允许应用非线性运动方程来求出射弹的每单位面积的速度和撞击能量。该模型的结果和分析可以在课堂上产生一个有趣的讨论，需要建立使用动能冲击弹的协议，以及在社会冲突中使用科学知识的重要性。
英文摘要：
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.
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