Problem 2 ( )A 200 Kg load is hung on a wire of length 4 m, and a cross- sectional area A=4 10- m2. Its length increases by 2 mm. (Take g%=9.8 m/s) a) ( ) Calculate the stress. Stress = b) ( ) Calculate the strain. Strain = c) ) Determine young's modulus. Y =

Problem 2 ( )A 200 Kg load is hung on a wire of length 4 m, and a cross- sectional area A=4 10- m2. Its length increases by 2 mm. (Take g%=9.8 m/s) a) ( ) Calculate the stress. Stress = b) ( ) Calculate the strain. Strain = c) ) Determine young's modulus. Y =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter9: Fluids And Solids

Section: Chapter Questions

Problem 73P: A high-speed lifting mechanism supports an 800.-kg object with a steel cable that is 25.0 m long and...

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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

Problem 2 (
)A 200 Kg load is hung on a wire of length 4 m, and a cross-
sectional area A=4 10- m2. Its length increases by 2 mm. (Take g=9.8 m/s)
a) (
) Calculate the stress.
Stress =
b) (
) Calculate the strain.
Strain =
c)
) Determine young's modulus.
Y =

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