On 03/18/2016 02:42 PM, EVDL Administrator via EV wrote:
That's basic physics. If the mass of the vehicle doesn't change, the kinetic energy released in the descent can't be more than was stored in the ascent, no? If would be the same if the laden vehicle ascended and descended the hill. In the special case that the news piece describes, the mass DOES change. The extra kinetic energy descending comes from the load added at the top of the hill. Sorry for the confusion. David Roden - Akron, Ohio, USA EVDL
I read the story and was left with an incomplete understanding of the trips the vehicle was intended to make. I came to the conclusion that the vehicle was likely hauling ore or some other load down hill and then dead headed (went empty) back up hill. And did that repeatedly.
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