main

prev        

Statement of a problem № 41165

        next    

The roof over a 7.0-m X 10.0-m room in a school has a total mass of 12,600 kg. The roof is to be supported by vertical “2 X 4s” (actually about 4.0cm X 9.0cm) along the 10.0-m sides, How many supports are required on each side, and how far apart must they be? Consider only compression, and assume a safety factor of 12.




New search. (Also 5349 free access solutions)