Monday, July 27, 2009

Math question and let us do our Share

Let Us Do Our Share
The realization that our own strength may be inadequate should never cause us to sink back into inertia.
Never refrain from a good endeavor because the difficulties involved seem insurmountable.
Keep in mind that we have a mighty Helper in the Almighty in all our good endeavors.
Let us do our share; the Almighty will do the restSubject:
Love Yehuda
 FW: Math question

Subject: Math question

  Math Question

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.


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

the pictures are great!