Quote:
Originally Posted by NeilBlanchard
The reason is, that as you note weight adds to the kinetic energy, so you can reclaim it by coasting, and/or by using regenerative braking if it is a EV.
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It's still a net loss, even if you can reclaim some of it.
You can't always coast down to a stop.
Regen braking slows you down in the process, so you lose even more as you're not getting as far, nor is the conversion to stored electrons 100% .