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A square box beam is made of two x 3.5-in. planks and two x 5-in. planks nailed together as shown. Knowing that the spacing between the nails is s = 2 in. and that the allowable shearing force in each nail is 75 Ib, determine (a) the largest allowable vertical shear in the beam, (b) the corresponding maximum shearing stress in the beam. in. 3.5 in. in. 5 in. VA

A square box beam is made of two x 3.5-in. planks and two x 5-in. planks nailed together as shown. Knowing that the spacing between the nails is s = 2 in. and that the allowable shearing force in each nail is 75 Ib, determine (a) the largest allowable vertical shear in the beam, (b) the corresponding maximum shearing stress in the beam. in. 3.5 in. in. 5 in. VA

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A square box beam is made of two x 3.5-in. planks and two x 5-in. planks nailed together as shown. Knowing that the spacing between the nails iss = 2 in. and that the allowable shearing force in each nail is 75 lb, determine (a) the largest allowable vertical shear in the beam, (b) the corresponding maximum shearing stress in the beam. in. 3.5 in. in. 5 in. Fig. P6.2
Transcribed Image Text:A square box beam is made of two x 3.5-in. planks and two x 5-in. planks nailed together as shown. Knowing that the spacing between the nails iss = 2 in. and that the allowable shearing force in each nail is 75 lb, determine (a) the largest allowable vertical shear in the beam, (b) the corresponding maximum shearing stress in the beam. in. 3.5 in. in. 5 in. Fig. P6.2
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Why are we taking this specific cross section for the second part of the question ? Is it because it's the one where the nails are ? 

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