One begins with a set of known facts (given in the problem) and a set of relevant equations and definitions (which you select, based on the problem). In this case, you decide to use the definition of ...One begins with a set of known facts (given in the problem) and a set of relevant equations and definitions (which you select, based on the problem). In this case, you decide to use the definition of “average speed”: the total distance divided by the total time. In this course we’ll present some of the laws of Nature that have been deduced so far, along with some of the important results and consequences of those laws.
