Julio wrote: > The maximum acceleration that the human body can > withstand for a very short period of time without suffering injury > is 20 g's. True, but only when very well supported, e.g. in a fighter plane pressure suit. But here we have a connection that is much worse. If you connect the cable to the boat, then a 20 g stop would katapult you out of your seat onto the foredeck. If you tie the cable to around waist a 20 g stop will try to pull a little section out of your body, with damaging effects on your internal organs and spine. To illustrate the huge acceleration: 20 g acceleration woud stop a car moving at 55 mile/h within 0.13 seconds, or within a distance of 1.6 meter! Another point: All calculations up to now neglect the effect of the rope itself. However, for an elastic kind of rope, the rope itselsf does take a lot of the energy. This is exactly the effect that rock klimbers and mountaineers use. No bugees there, only (specials types of) rope. Just for what it is worth, Greetings, Merijn ****************************** Merijn Wijnen Vinkenhofje 8 5613 CN Eindhoven The Netherlands Tel.: 040-2939991 (job: 040-2650539) Fax: same as tel., call before sending or try twice E-mail: Home: merijn_at_music.demon.nl Job: m.wijnen_at_ind.tno.nl Web-site: http:\\www.music.demon.nl *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue Oct 19 1999 - 08:29:39 PDT
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