Answered: -0.75 m 0.4 m B 1.4 m 28 kN | bartleby

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Members AB and AC of the truss shown consist of bars of square cross section made of the same alloy. It is known that a 20-mm-square bar of the same alloy was tested to failure and that an ultimate load of 120 kN was recorded. If a factor of safety of 3.2 is to be achieved for both bars, determine the required dimensions of the cross section of(a) bar AB, (b) bar AC.

-0.75 m
0.4 m
B
1.4 m
28 kN

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