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.?
Yes, you can neglect friction.

http://www.theforumlounge.com/attachment.php?attachmentid=3064&stc=1&d=1232153193

http://www.theforumlounge.com/attachment.php?attachmentid=3065&stc=1&d=1232153209

http://www.theforumlounge.com/attachment.php?attachmentid=3066&stc=1&d=1232153225

w...why?

I couldn't solve it either......but who cares;

the pictures are great!

why as in., why was its boom up?

why as in., why was its boom up?

http://images.icanhascheezburger.com/completestore/2008/7/8/yetanothervict128600460334020514.jpg

Maybe??

the boom wasnt up befor he hit the bridge. if the boom was pointed at the back of the trailer it would have missed the bridge.

...And niether guard rail on either side of the bridge is breached.
Expensive trimming job.

55 mph

42