7-31. The bars of the truss each have a cross-sectional area of 780 mm?. If the maximum average normal stress in any bar is not to exceed 140 MPa, determine the maximum magnitude Pof the loads that can be applied to the truss. a9m -1.2m -1.2 m- 0.75 P

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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7-31. The bars of the truss each have a cross-sectional
area of 780 mm?. If the maximum average normal stress in
any bar is not to exceed 140 MPa, determine the maximum
magnitude Pof the loads that can be applied to the truss.
a9m
-1.2m
-1.2 m-
0.75 P
Transcribed Image Text:7-31. The bars of the truss each have a cross-sectional area of 780 mm?. If the maximum average normal stress in any bar is not to exceed 140 MPa, determine the maximum magnitude Pof the loads that can be applied to the truss. a9m -1.2m -1.2 m- 0.75 P
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