A track hoe 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, re inforced with 1½ 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 to include friction in your calculations........ Whatever! Apparently the driver was talking on his mobile!!
www.actonhotrod.com
FECKI am the willingLed by the unknowingDoing the impossibeFor the ungrateful.
Lets just have some fun
ARSE!
Restore,Renovate,Respect For Years To ComeAustin A40 Farina Mk2 1967 0-60 = 27.1secs 35MpgTAX Exempt
chucky wrote: That bridge was probably built with that sub standard cemex concrete! hey Mark?
That bridge was probably built with that sub standard cemex concrete! hey Mark?
mark wrote: chucky wrote: That bridge was probably built with that sub standard cemex concrete! hey Mark? Yeah your probally right there .the contractors could have been b&w and they saved some money not putting enough steel in
Bloody Polish builders!!
my guess is 55 mph 3 seconds to stop and distance 15ft
