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Author Topic: MATH PROBLEM  (Read 2822 times)

08087

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MATH PROBLEM
« on: September 27, 2012, 11:28:06 PM »
http://www.thehulltruth.com/dockside...-question.html

Math Question
An Excavator 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.

Click on the link for the rst of the story.
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Agility50toy

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Re: MATH PROBLEM
« Reply #1 on: September 28, 2012, 02:51:19 AM »
wtf?
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Vivo

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Re: MATH PROBLEM
« Reply #2 on: September 28, 2012, 02:58:44 AM »
Too old to think.... maybe 30 years ago I can do.....


BTW... It did not slice, it pierced... ;)









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bootscooterboogie

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Re: MATH PROBLEM
« Reply #3 on: September 28, 2012, 03:00:15 AM »
>>
<<

Is this for like a terrorist planning session?
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Peters

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Re: MATH PROBLEM
« Reply #4 on: September 28, 2012, 03:15:23 AM »
Your link doesn't work dude... Commercial grade concrete??? ??? What's the psi? What's the equipment strapped down with? What angle is the boom at? How thick is the concrete? How old is the concrete? Is there cars on the bridge? How drunk is the driver? I mean how many variables can there be? Stupid question. Fix your link and we might understand.
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Vivo

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Re: MATH PROBLEM
« Reply #5 on: September 28, 2012, 03:21:26 AM »
or was it Photoshopped?  ;D ;D ;D


Hey Peters., just copy the problem and paste to Google... it has become an urban legend....

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Peters

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Re: MATH PROBLEM
« Reply #6 on: September 28, 2012, 03:31:37 AM »
I see... The bridge wasn't cut all the way through...
Quote
it pierced... Wink
I'm disappointed  :-\...
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Vivo

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Re: MATH PROBLEM
« Reply #7 on: September 28, 2012, 03:42:27 AM »
Backhoes had a meeting...

"Did you guys knew what happened to Bob?"

"Yeah, he was on top of this flat bed and... wham! he pierced a bridge"

"Damn! and this made him famous?"

"Yup, my American dream..."

          \

« Last Edit: September 28, 2012, 03:50:05 AM by Vivo »
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Peters

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Re: MATH PROBLEM
« Reply #8 on: September 28, 2012, 03:47:24 AM »
Hoes! Where?
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Vivo

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Re: MATH PROBLEM
« Reply #9 on: September 28, 2012, 03:57:04 AM »
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Peters

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Re: MATH PROBLEM
« Reply #10 on: September 28, 2012, 03:57:39 AM »
Urban dictionary's definition of backhoe:
During sex in the missionary position, when one uses the chick's legs as if they are the levers used to operate a backhoe.
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Peters

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Re: MATH PROBLEM
« Reply #11 on: September 28, 2012, 03:59:05 AM »
 ;D

Paris!

My friend is dating a girl named Paris. She's hot too  ;D
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Vivo

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Re: MATH PROBLEM
« Reply #12 on: September 28, 2012, 07:17:31 AM »
Nobody will ever get to solve the question because that thing does not weigh 8 tons in the first place.  The Hyundai R210LC-7 weighs more than that... 23 metric tons or 25.5 tons (short US) ... and that's the operational weight... the dry weight would be different....

and Commercial grade concrete? maybe you meant commercial strength concrete??? commercial grade cement??? but that's not how they grade cement...  and I think roads and bridges use refractory grade...


in our country... that same scenario can cut two bridges... think sub-standard materials...  ;D



http://www.ritchiespecs.com/specification?type=&category=Hydraulic+Excavator&make=Hyundai&model=R210LC-7++High+Chassis&modelid=92415





lots of variables and wrong info....


more of a brain twister than a math question if you ask me...

a challenge to VIVO P.I.    ;D
« Last Edit: September 28, 2012, 08:06:40 AM by Vivo »
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gn2

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Re: MATH PROBLEM
« Reply #13 on: September 28, 2012, 08:17:52 AM »
I have given this problem some thought and I think the answer is: Tuesday.
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Vivo

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Re: MATH PROBLEM
« Reply #14 on: September 28, 2012, 08:24:20 AM »
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Call to undefined function split()
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