An aerial copper wire (E = 1 × 10^5 N/mm^2) 40m long has cross sectional area of 80 mm^2 and weighs 0.6 N per meter run. If the wire is suspended vertically, calculate: a. the elongation of wire due to self-weight. b. the total elongation when a weight of 200N is attached to its lower end. c. the maximum weight which this wire can support at its lower end if the limiting value of stress is 65 x 10^5 N/mm^2
An aerial copper wire (E = 1 × 10^5 N/mm^2) 40m long has cross sectional area of 80 mm^2 and weighs 0.6 N per meter run. If the wire is suspended vertically, calculate: a. the elongation of wire due to self-weight. b. the total elongation when a weight of 200N is attached to its lower end. c. the maximum weight which this wire can support at its lower end if the limiting value of stress is 65 x 10^5 N/mm^2
Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
5th Edition
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Saeed Moaveni
Chapter10: Force And Force-related Variables In Engineering
Section: Chapter Questions
Problem 28P
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An aerial copper wire (E = 1 × 10^5 N/mm^2) 40m long has cross sectional area of 80 mm^2 and weighs 0.6 N per meter run. If the wire is suspended vertically, calculate: a. the elongation of wire due to self-weight. b. the total elongation when a weight of 200N is attached to its lower end. c. the maximum weight which this wire can support at its lower end if the limiting value of stress is 65 x 10^5 N/mm^2
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