[BerntR]

Jeff,

Feel free to redefine basics physics all you want. But IMO you should really study the concept of work in the Newtonian sense before you throw it in the trash bin. So far Newton mechanics has been more than adequate for all my purposes related to mechanics.

Should I ever face a problem where Newton's doesn't deliver I will most likely turn to Einsteins theory of relativity. And perhaps also have a close look at quantum mechanics.

If I still haven't found what I'm looking for, maybe I will ask you for assistance