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Re: [ST] for Marc -



Your analogy is tragically flawed...
 
regardless of the forward motion, on object will accelerate towards the ground at the same rate under the pull of gravity (unless it has wings or something something creating lift from a forward motion...).  So the force when hitting the ground will be identical whether moving forward or not.  Your analogy ends up with two very different impact speeds (falling from standing and falling from your roof do not have the same acceleration distances - the object falling from the roof will have more distance to accelerate and thus be moving faster (normal to the ground) and thus have a greater normal force impact with the ground.  To make the analogy you need to be running and fall to the ground, or just standing and fall to the ground.  In that case, the impact is the same.
 
Matt Heyer


----- Original Message ----
From: donnydogood <donalddraper@xxxxxxxxxxx>
To: st@xxxxxxxxxxxxxxxxxxxx
Sent: Monday, June 5, 2006 1:59:11 PM
Subject: [ST] for Marc -


>>> I've been told by more than one person that sliders can do more harm than good in a big off. <<<

    Actually, the worst damage done by frame sliders is usually in a tip over of a stationary bike, due to the angle of the impact and the full weight of the bike landing on the slider.  The greater the speed, the more of a glancing blow the slider receives.  To demonstrate this for yourself, don your protective gear and run as fast as you can through the house and out the front door, jumping over the steps, landing on the sidewalk and sliding to a stop.  Note the sensations, including pain, you experience.  Now climb up on your roof and jump off, falling straight down to the pavement.  Feel the difference?

                                      dowgydoodoo            - - - - o&\o 



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