•205. A steel rod having a cross-sectional area of 300mm? and a length of 150m is suspended vertically from one end. It supports a load of 20KN at the lower end. If the unit mass of steel is 7850kg/m³ and E=200x10³MPa, find the total elongation of the rod.

•205. A steel rod having a cross-sectional area of 300mm? and a length of 150m is suspended vertically from one end. It supports a load of 20KN at the lower end. If the unit mass of steel is 7850kg/m³ and E=200x10³MPa, find the total elongation of the rod.

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).

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•205. A steel rod having a cross-sectional area of 300mm²
and a length of 150m is suspended vertically from one
end. It supports a load of 20KN at the lower end. If the
unit mass of steel is 7850kg/m³ and E=200x10³MPa, find
the total elongation of the rod.

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