Equilibrium of forces and couples
Consider supporting the member in the orientation shown by applying
only a couple to the nut, and a force through a supporting smooth rod.
Is it possible to support it this way?
Yes
No
Pi
Gr
Yes
No
Pi
Gr
Yes
No
Pi
Gr
Yes
No
Pi
Gr
Yes
No
Pi
Gr
Equilibrium of forces and couples
Consider supporting the member in the orientation shown by applying
only a couple to the nut, and a force through a supporting smooth rod.
What is the direction of the couple?
Clockwise
Gr
Counterclockwise Pi
Clockwise
Gr
Counterclockwise Pi
Clockwise
Gr
Counterclockwise Pi
Clockwise
Gr
Counterclockwise Pi
Equilibrium of forces and couples
Consider supporting the member in the vertical plane by applying
a couple to the nut at C and force through at B
C
B
A
What is the direction of the couple at C?
Clockwise
Gr
Counterclockwise Pi
Equilibrium of forces and couples
Consider supporting the member in the vertical plane by applying
a couple to the nut at C and force through at A
C
B
A
What is the direction of the couple at C?
Clockwise
Gr
Counterclockwise Pi
Equilibrium of forces and couples
C
B
A
h
W
A
What is the direction of the couple at C?
Counterclockwise Pi
Equilibrium of forces and couples
Consider supporting the member in the vertical plane by applying
a couple to the nut at C and force through a supporting rod placed at B
C
B
A
What is the direction of the couple at C?
Clockwise
Gr
Counterclockwise Pi