Note: It is assumed that the reader has read part I and part II of the series.
Is Mechanical Energy Conservation Free of Ambiguity?
Can We Do Better Than Mechanical Energy Conservation?
Because of what has already been said, there seem to be three options for proceeding with the teaching of mechanical energy conservation in introductory physics courses.
Make no changes.
Keep teaching mechanical energy conservation but fix it first.
Abandon mechanical energy conservation and replace it with the law of energy conservation.
Option 1 is the default “do nothing” option; it is what we have now and we know exactly what it looks like. Option 3 has been presented in some detail in part II. Because option 2 has not been described so far, we will examine what it might look...