[Humor] [Triangle] FW: Engineering Problem

Jim C. Nasby jim at nasby.net
Thu Jun 29 16:58:45 CDT 2006


"oops" is what comes to my mind...

On Thu, Jun 29, 2006 at 04:45:41PM -0500, Mark Wheatley wrote:
> Wow!
> 
> Jim C. Nasby wrote:
> >Here's an engineering problem:
> >
> >A backhoe weighing 8 tons is on top of a flatbed trailer and heading
> >east on Interstate 70 near Hays, Kansas.  The extended shovel arm is
> >made of hardened refined steel and the approaching overpass is made of
> >commercial-grade concrete, reinforced with 1 1/2 inch steel rebar spaced
> >at 6-inch intervals in a criss-cross pattern layered at 1 foot vertical
> >spacing.
> >
> >Solve:  When the shovel arm hits the overpass, how fast do you have to
> >be going to slice the bridge in half?  (Assume no effect for headwind
> >and no braking by the driver...)
> >
> >Extra Credit:  Solve for the time and distance required for the entire
> >rig to come to a complete stop after hitting the overpass at the speed
> >calculated above.
> >
> >Answer:
> >http://www.synaudcon.com/misc/overpass1.jpg
> >http://www.synaudcon.com/misc/overpass2.jpg
> >http://www.synaudcon.com/misc/overpass3.jpg
> >
> >
> >PS - It's comforting to know that whatever I screw up today it probably
> >won't be this bad!
> >_______________________________________________
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> >Humor at lists.decibel.org
> >http://lists.decibel.org/mailman/listinfo/humor
> >
> >
> >
> >  
> 
> 

-- 
Jim C. Nasby, Database Architect                   jim at nasby.net
512.569.9461 (cell)                         http://jim.nasby.net


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