Considering the truck was probably run=
ning
between 65 and 75 mph, Id say to slice the bridge in half, the truck would =
have
to be travelling between130 mph and 145mph by merely looking at the photos.=
On another note, Id hate to be the adj=
uster
on that claim……………
Mitch Davis
TSCM/Special Operations Group
615 251 0441
Fax 615 523 0300
mit..._at_tscmusa.com
www.tscmusa.com
"maintaining a higher degree of
excellence"
******************************
Tools for investigators at www=
.covertworx.com
From:
Sent: Sunday, September 21, =
2008
12:47 AM
Subject: [TSCM-L] {2906}
Engineering Quiz
An excavator weighing 8 tons is on top of a flatbed trailer and headi=
ng
east on Interstate 70 near Hays,
made of hardened steel and approaching a two lane overpass made of 5,000
psi concrete, reinforced with #6 steel bars spaced at 6 inches on center
each way, each face.
Solve: When the shovel arm hits the overpass, how fast does he 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.
(see pix for answers)
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