A 5.0m long steel wire has a cross-sectional area of 0.55cm2 . Its proportional limit has a value of 0.0018 times its Young’s modulus. Its breaking stress has a value of 0.0065 times its Young’s modulus. The wire is fastened at its upper end and hangs vertically. (a) How great a weight can be hung from the wire without exceeding the proportional limit? (b) How much will the wire stretch under this load? (c) What is the maximum weight that the wire can support?
A 5.0m long steel wire has a cross-sectional area of 0.55cm2 . Its proportional limit has a value of 0.0018 times its Young’s modulus. Its breaking stress has a value of 0.0065 times its Young’s modulus. The wire is fastened at its upper end and hangs vertically. (a) How great a weight can be hung from the wire without exceeding the proportional limit? (b) How much will the wire stretch under this load? (c) What is the maximum weight that the wire can support?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter14: Static Equilibrium, Elasticity, And Fracture
Section: Chapter Questions
Problem 57PQ: A copper rod with length 1.4 m and cross-sectional area 2.0 cm2 is fastened to a steel rod of length...
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A 5.0m long steel wire has a cross-sectional area of 0.55cm2
. Its proportional limit has a value of 0.0018 times its Young’s modulus. Its breaking stress has a value of 0.0065 times its Young’s modulus. The wire is fastened at its upper end and hangs vertically.
(a) How great a weight can be hung from the wire without exceeding the proportional limit?
(b) How much will the wire stretch under this load?
(c) What is the maximum weight that the wire can support?
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