tyrant Posted June 20, 2011 Share Posted June 20, 2011 Conditions:A backhoe weighing 22 tons is on top of a lowboy 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 one-inch steel rebar spaced at six-inch intervals in a criss-cross pattern layered at one-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.I couldn't solve it either, but who cares? The pictures are great! Oh, yeah, the driver was on his cell phone.1vv.bmp2vvv.bmp3vvv.bmp Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/ Share on other sites More sharing options...
Pawel Posted June 20, 2011 Share Posted June 20, 2011 Pity, it was a nice bridge... I'm glad I wasn't travelling on top of it - imagine a large steely claw ripping through the asphalt right in front of you... Creepy! Have a nice dayPaweł Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-79988 Share on other sites More sharing options...
mowerman Posted June 20, 2011 Share Posted June 20, 2011 Pity, it was a nice bridge... I'm glad I wasn't travelling on top of it - imagine a large steely claw ripping through the asphalt right in front of you... Creepy! Have a nice dayPawełi hadnt thought of that,,,thats messed up,,,nice to hear from ya.bob Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-79992 Share on other sites More sharing options...
mowerman Posted June 20, 2011 Share Posted June 20, 2011 thats what happens,,,when you send a boy to do mens work...thats not good,,,big expence for someone..bob Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-79994 Share on other sites More sharing options...
jaysm35a2 Posted June 20, 2011 Share Posted June 20, 2011 What make of truck ? Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-79999 Share on other sites More sharing options...
hatcity Posted June 20, 2011 Share Posted June 20, 2011 What make of truck ?Does it really matter?I think it was a yellow Pete 379exhd Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80018 Share on other sites More sharing options...
HeavyGunner Posted June 20, 2011 Share Posted June 20, 2011 Someone's insurance dropped them after that claim! For more fun go to Google earth, then to Conrad, Mt then go to street view on I-15 and look at the John Deere air drill stuck under an underpass. Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80019 Share on other sites More sharing options...
Mike Posted June 20, 2011 Share Posted June 20, 2011 The answer is, 5,003 ft. @ 70mph with that size load if he was not on Crack Cocaine. mike Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80020 Share on other sites More sharing options...
other dog Posted June 24, 2011 Share Posted June 24, 2011 The answer is, 5,003 ft. @ 70mph with that size load if he was not on Crack Cocaine. mikebut what if he was smoking crack? Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80202 Share on other sites More sharing options...
slpwlker Posted June 24, 2011 Share Posted June 24, 2011 This pics been around for a few. When I was still at Landstar Every year at the Heavy Haul meeting this was brought up along with the threat of instant termination. Only thing I can figure is he didn't have a triaxle tractor and to get the weight right he had to load counter weight and final drives to the back I've loaded a few like this and layed the boom over the neck. but once you pick the trailer up. Common sense esp if anything is taller then the stacks you measure the damn load.Guess we all have our blonde moments Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80215 Share on other sites More sharing options...
single drive Posted June 25, 2011 Share Posted June 25, 2011 Atleast he didnt ruin a decent piece of equipment in the process. Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80265 Share on other sites More sharing options...
other dog Posted June 25, 2011 Share Posted June 25, 2011 . Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80268 Share on other sites More sharing options...
rhasler Posted June 25, 2011 Share Posted June 25, 2011 Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80282 Share on other sites More sharing options...
Rob Posted June 25, 2011 Share Posted June 25, 2011 I got lost in the original equation.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80290 Share on other sites More sharing options...
Mike Posted June 25, 2011 Share Posted June 25, 2011 Why Tom,... you knew that he would have flown over the bridge and not under it. mike Quote Link to comment https://www.bigmacktrucks.com/topic/19460-math-question/#findComment-80300 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.