Your physics and material science quiz of the day
 

A hoe 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.

http://img113.imageshack.us/img113/7...ecrash12kp.jpg

http://img113.imageshack.us/img113/2...ash28ux.th.jpg http://img113.imageshack.us/img113/9...ash36bs.th.jpg http://img113.imageshack.us/img113/7...ash40ad.th.jpg

credit to: Snopes.com

that is awesome! So, what's the answer? :)

i always hated word problems...

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ummm... What is a hoe???

See, I thought his response was in fact a correct response...

Hilarious how embarassed he is, though.

That's absolutely incredible!

well we know that some one failed that question.

I like Alex's reaction. Took him a second to get that one, I guess.