A vertical steel girder with a crosssectional area of 0.15 m2 has a 1550 kg sign hanging from its end. (Ignore the mass of the girder itself.) If the girder is 9.50 m long, how much is it lengthened? Note that the Young's modulus =200x10 9 * 8.4x10 6m O 4.4x10 -6m 4.8x10 -6m All answers are wrong

A vertical steel girder with a crosssectional area of 0.15 m2 has a 1550 kg sign hanging from its end. (Ignore the mass of the girder itself.) If the girder is 9.50 m long, how much is it lengthened? Note that the Young's modulus =200x10 9 * 8.4x10 6m O 4.4x10 -6m 4.8x10 -6m All answers are wrong

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 74AP: Two rods, one made of copper and the other of steel, have the same dimensions. If the copper rod...

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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 vertical steel girder with a
crosssectional area of 0.15 m2
has a 1550 kg sign hanging
from its end. (Ignore the mass
of the girder itself.) If the
girder is 9.50 m long, how
much is it lengthened? Note
that the Young's modulus
=200x10 9 *
O 8.4x10 6m
4.4x10 -6m
O 4.8x10 -6m
O All answers are wrong

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