Circuitmage Posted August 3, 2017 Share Posted August 3, 2017 All of this safety talk has me thinking about the "real world" parameters involved here. Everyone is different, physically, and we are on different machines using them in different ways. So, it seems the best way to address this is with SCIENCE! These EUC's are wonderful machines, capable of thrusting various size humans (M=MASS) at various speeds (A=ACCELERATION), resulting in some FORCE (F). Specifically, the physics of safety has to do with Force. Here are some quick numbers, compiled, to aid in mitigating safety needs; F=MA Comparisons (at 10 MPH / 16 KPH) 10 MPH (16 KPH) @ 100 LBS (45 KGS) = 203 Newtons 10 MPH (16 KPH) @ 150 LBS (68 KGS) = 304 Newtons 10 MPH (16 KPH) @ 200 LBS (90 KGS) = 405 Newtons 10 MPH (16 KPH) @ 250 LBS (113 KGS) = 507 Newtons F=MA Comparisons (at 15 MPH / 24 KPH) 15 MPH (24 KPH) @ 100 LBS (45 KGS) = 304 Newtons 15 MPH (24 KPH) @ 150 LBS (68 KGS) = 456 Newtons 15 MPH (24 KPH) @ 200 LBS (90 KGS) = 608 Newtons 15 MPH (24 KPH) @ 250 LBS (113 KGS) = 760 Newtons F=MA Comparisons (at 20 MPH / 32 KPH) 20 MPH (32 KPH) @ 100 LBS (45 KGS) = 406 Newtons 20 MPH (32 KPH) @ 150 LBS (68 KGS) = 608 Newtons 20 MPH (32 KPH) @ 200 LBS (90 KGS) = 811 Newtons 20 MPH (32 KPH) @ 250 LBS (113 KGS) = 1013 Newtons So, what do all these "Newtons" mean? Well, we need to compare these numbers with possible effects. "a force of 73 Newtons is enough to cause a simple fracture, thisforce is the equivalent of walking into something solid. Anunrestrained adult fall from standing has been shown to produce aminimal force of 873 N which is more than enough to produce a skullfracture."http://www.portfolio.mvm.ed.ac.uk/studentwebs/session2/group62/head.htm In general, this tells you "The bigger you are, the harder you will fall.". A 250lb person going 10Mph is going to hit something with more force than a 100lb person going 20mph. And if you are talking about road rash, scrapes, cuts, bruises and more...all of these forces can easily produce them. I think the takeaway to keep in mind is that as you increase your speed, you are applying the weight of your body to whatever you are going to hit at a greater and greater force. Link to comment Share on other sites More sharing options...
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