Link to the lesson: https://www.codecademy.com/courses/learn-python-3/projects/physics-class
Hi team, I had a question. For this project, we did not have to define any variables though we used them without a problem. Even though we didn’t assign number values to train_mass, train_acceleration, or train_distance for example, we still got a number value as a result when we ran the function. Is this just because the lesson was created that way or are these just universally known units like inches and centimeters?