Answered: 2h A D B P L-

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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Question

A rigid bar AB of a length L = 66 in. is hinged
to a support at A and supported by two vertical wires
attached at points C and D (see figure). Both wires have
the same cross-sectional area (A = 0.0272 in² ) and are
made of the same material (modulus E = 30 x10⁶psi).
The wire at C has a length h =18 in. and the wire at D
has a length twice that amount. The horizontal distances
are c = 20 in. and d = 50 in.
(a) Determine the tensile stresses σ_C and σ_D in the
wires due to the load P = 340 lb acting at end B
of the bar.
(b) Find the downward displacement δ_B at end B of
the bar.

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