Originally Posted by DaveLeeNC

Sorry - that is just not true. It would be true on a frictionless surface in a vacuum (assuming that the velocity was the same at the start and end). But in the real world, you heated your tires a bit (energy), you actually heated the air a bit (energy), you might or might not have the same kinetic energy at the start and the end, etc.

In physics terms Work = Force x Distance. If you achieved some non-zero distance with no force applied, then OK. Otherwise ...

dave