Abstract
In the study of Newtonian mechanics, understanding of Newton's laws in depth is essential. If this happens, it will be easy to see that all other phenomena to be studied are consistent with three laws of motion formulated by Isaac Newton. In particular, Newton's first law is that of greater philosophical complexity and less comprehended by students upon leaving a basic physics course. It is not uncommon to find students describing Newton's first law as a particular case of Newton's second law. This paper aims to discuss and clarify the main doubts and misconceptions that arise when studying the law of inertia, as well as to present a proposal of presentation in the classroom that allows for a deeper understanding of this law.
Keywords:
Newton's first Law; law of inertia; basic physics; newtonian machinics
