Quote (bentherdonethat @ Mar 8 2011 10:06pm)
Didn't watch it. Did thumb down the video though. I don't understand how someone could make their life dream the act of picking something up and putting it right back down in the exact same place. The net work done is literally zero.
Really?
I'm curious to know how exactly he moved a negative force.
Furthermore, I'm curious to know exactly which forces you are talking about which negated themselves, because, there are only 2 constant forces working (gravity and his lifting force), and neither of them change directions.