Concrete block weighing 20,000 lb is supported by 2 STEEL rods

[williamx11373]

a concrete block weighing 20,000 lb is supported by 2 STEEL rods, rod AB has an area of 1 in and rod CD has an area of 2 in...

what is the elongation of each rod...?
http://s44.photobucket.com/albums/f46/maximus11373/?action=view&current=untitled.jpg&newest=1i don't know how to start, should i take reactions of the concrete block??

any help will be appreciated.

 

[PhanthomJay]

a concrete block weighing 20,000 lb is supported by 2 STEEL rods, rod AB has an area of 1 in and rod CD has an area of 2 in...

what is the elongation of each rod...?



http://s44.photobucket.com/albums/f46/maximus11373/?action=view&current=untitled.jpg&newest=1


i don't know how to start, should i take reactions of the concrete block??

any help will be appreciated.

Finding reactions of the steel rods on the concrete block would be a good start. Can you find them? Then what?

 

[williamx11373]

wooo thanks i found the answer !