MECHANICS OF MATERIALS (LOOSE)-W/ACCESS
10th Edition
ISBN: 9780134583228
Author: HIBBELER
Publisher: PEARSON
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Chapter 4.5, Problem 4.39P
The load of 2000 lb is to be supported by the two vertical steel wires for which σγ = 70 ksi. Originally wire AB is 60 in. long and wire AC is 60.04 in. long. Determine the cross-sectional area of AB if the load is to be shared equally between both wires. Wire AC has a cross-sectional area of 0.02 in2. Est= 29.0(103) ksi.
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The load in (Figure 1) of 2290 lb is to be supported by the two vertical steel wires for which
σy 73 ksi. Originally wire AB is 60 in. long and wire AC is 60.04 in. long. Each wire has
a cross-sectional area of 0.02 in². Est = 29.0(10³) ksi.
=
Figure
B
60 in.-
60.04 in.
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Part A
Determine the force developed in wire AB after the load is suspended.
Express your answer to three significant figures and include appropriate units.
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Part B
μÅ
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MÅ
Determine the force developed in wire AC after the load is suspended.
Express your answer to three significant figures and include appropriate units.
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1. A tripod whose legs are gach 4 meters long supports a load of 1000 kg. The feet of the tripod
are vertices of a horizontal equilateral triangle whose side is 3.5 meters. Determine the load
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1.75
cos 30' =
AE
R.
AE = 2.02
AE
sine=
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8 = 30.33
RA = R =Rc =R
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The figureshows a copper rod that is placed in an aluminum tube. The rod is 0.005 in. longer than the tube of length L = 10.14 in. Find the maximum safe load P (in lb with four decimal places) that can be applied to the bearing plate, using the following data:
area of copper = 2.78 sq, in.
area of aluminum = 3.28 sq, in.
E of copper = 17013025 ksi
E of aluminum = 10072240 ksi
allowable stress for copper = 19000 ksi
allowable stress for aluminum = 10802 ksi
Chapter 4 Solutions
MECHANICS OF MATERIALS (LOOSE)-W/ACCESS
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EVERYTHING on Axial Loading Normal Stress in 10 MINUTES - Mechanics of Materials; Author: Less Boring Lectures;https://www.youtube.com/watch?v=jQ-fNqZWrNg;License: Standard YouTube License, CC-BY