Engineering Mechanics: Statics
8th Edition
ISBN: 9781118807330
Author: James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher: WILEY
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Textbook Question
Chapter 3.3, Problem 54P
The pin A, which connects the 200-kg steel beam with center of gravity at G to the vertical column, is welded both to the beam and to the column. To test the weld, the 80-kg man loads the beam by exerting a 300-N force on the rope which passes through a hole in the beam as shown. Calculate the torque (couple) M supported by the pin.
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If L-719.01 mm, = 7839.63 N/m³, the normal stress σ caused by self-weight at the location of the maximum normal stress in the bar can be calculated as
(Please select the correct value of σ given in Pa and rounded to three decimal places.)
Select one:
○ 1. 1409.193
2. 845.516
O 3. 11273.545
○ 4.8455.159
○ 5.4509.418
6. 2818.386
7.5636.772
To calculate the rotation at Point B, a suitable virtual structure needs to be created.
Which equation in the following choices most accurately represents the functional relationship between the bending moment, Mv2 ( Units: N.mm), of the virtual
structure and the spatial coordinate x (Units: mm) if the applied unit virtual moment is clockwise?
Select one:
O 1. Mv2 1.000
O 2. Mv2=x+1.000
O 3. Mv2=x+0.000
4. Mv2 = -x-1.000
O 5. Mv2 -1.000
6. Mv2=-x+0.000
The vertical deflection at Point B can be calculated as
( The following choices are provided in units of mm and rounded to three decimal places ; the downward deflection is negative and upward deflection is positive. )
Select one:
1. 1703.065
2. -1703.065
3. -2043.679
4.1362.452
5. -1362.452
6. 2043.679
Chapter 3 Solutions
Engineering Mechanics: Statics
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