31 kN4esc2 kNВоC2 kNDo1E180 mm1 kNFG2m 2m 2m 2m 2m 2m160 mmBHCKA90 mm0m1 m1m1mL 1m240 N31PROBLEM 6.131Arm ABC is connected by pins to a collar at B and to crank CD atC. Neglecting the effect of friction, determine the couple Mrequired to hold the system in equilibrium when 0=0.▸%PROBLEM 6.21LDetermine the force in each of the members located to theleft of FG for the scissors roof truss shown. State whethereach member is in tension or compression.A6&7*8ofJOJul 178:13x

Apply the condition of equilibrium and obtain the reaction force.Note- The notation "T" indicates…

1 kN A 2 kN Во C 2 kN D E 2 m 2m 1 kN F G H J 2m 2m 1m 71m im Tim L 1 m PROBLEM 6.21 Determine the force in each of the members located to the left of FG for the scissors roof truss shown. State whether each member is in tension or compression.

1 kN A 2 kN Во C 2 kN D E 2 m 2m 1 kN F G H J 2m 2m 1m 71m im Tim L 1 m PROBLEM 6.21 Determine the force in each of the members located to the left of FG for the scissors roof truss shown. State whether each member is in tension or compression.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.36P: The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find...

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

3
1 kN
4
esc
2 kN
Во
C
2 kN
Do
1
E
180 mm
1 kN
F
G
2m 2m 2m 2m 2m 2m
160 mm
B
H
C
K
A
90 mm
0
m
1 m
1m
1m
L 1m
240 N
31
PROBLEM 6.131
Arm ABC is connected by pins to a collar at B and to crank CD at
C. Neglecting the effect of friction, determine the couple M
required to hold the system in equilibrium when 0=0.
▸
%
PROBLEM 6.21
L
Determine the force in each of the members located to the
left of FG for the scissors roof truss shown. State whether
each member is in tension or compression.
A
6
&
7
*
8
of
J
O
Jul 17
8:13
x

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Step 1: Draw the free-body diagram for the system.

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Step 2: Draw the free body diagram for the joint at point A to obtain the unknown forces.

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Step 3: Draw the free body diagram for the joint at point B to obtain the unknown forces.

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Step 4: Draw the free body diagram for the joint at point E to obtain the unknown forces.

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Step 5: Draw the free body diagram for the joint at point D to obtain the unknown forces.

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