The rigid bar ABC of negligible weight is suspended from three aluminum wires, each of cross-sectional...
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The rigid bar ABC of negligible weight is suspended from three aluminum wires, each of cross-sectional area 0.3 in.². Before the load P is applied, the middle wire is slack, being 0.2 in. longer than the other two wires. Determine the largest safe value of P if the working stress for the wires is 12 ksi. Use E = 10 x 106 psi for aluminum. 4 ft B 4 ft P FIG. P2.52 60 ft The rigid bar ABC of negligible weight is suspended from three aluminum wires, each of cross-sectional area 0.3 in.². Before the load P is applied, the middle wire is slack, being 0.2 in. longer than the other two wires. Determine the largest safe value of P if the working stress for the wires is 12 ksi. Use E = 10 x 106 psi for aluminum. 4 ft B 4 ft P FIG. P2.52 60 ft
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