Pin-connected rigid bars AB, BC, and CD are initially held in the positions shown by taut wires (1) and (2). The bar lengths are a = 12 ft and b = 9 ft. Joint Cis given a horizontal displacement of 2.9 in. to the right. (Note that this displacement causes both joints B and C to move to the right and slightly downward.) What is the change in the average normal strain in wire (1) after the displacement? В (1), a Answer: ɛ = i με

Elements Of Electromagnetics
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Pin-connected rigid bars AB, BC, and CD are initially held in the positions shown by taut wires (1) and (2). The bar lengths are a = 12 ft
and b = 9 ft. Joint C is given a horizontal displacement of 2.9 in. to the right. (Note that this displacement causes both joints B and C to
move to the right and slightly downward.) What is the change in the average normal strain in wire (1) after the displacement?
%3D
В
(1),
a
(2)
A
D
Answer:
= 3
Transcribed Image Text:Pin-connected rigid bars AB, BC, and CD are initially held in the positions shown by taut wires (1) and (2). The bar lengths are a = 12 ft and b = 9 ft. Joint C is given a horizontal displacement of 2.9 in. to the right. (Note that this displacement causes both joints B and C to move to the right and slightly downward.) What is the change in the average normal strain in wire (1) after the displacement? %3D В (1), a (2) A D Answer: = 3
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