Answered: At what point along the rod should a…

At what point along the rod should a weight w be suspended to produce equal stresses in A and B? Express your answer in meters.

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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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

A 1.05-m-long rod of negligible weight is supported at its ends by wires A and B of equal length (the figure
(Figure 1)). The cross-sectional area of A is 2.34 mm? and that of B is 4.40 mm² . Young's modulus for wire
A js 2.10x1011 Pa: that for B is 1.00x1011 Pa.
Part A
At what point along the rod should a weight w be suspended to produce equal stresses in A and B?
Express your answer in meters.
d =
m from wire A
Submit
Request Answer
• Part B
At what point along the rod should a weight w be suspended to produce equal strains in A and B?
Express your answer in meters.
d =
m from wire A
Submit
Request Answer
Provide Feedback
Figure
1 of 1>
A
B
1.05 m

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