Couples In Equilibrium
Strings (SiPjAjk) = S7P7A71 Base Sequence = 12735 String Sequence = 12735 - 7 - 71
Forces F1, F2, F3, F4 act on a body. Forces F1 and F3 are a couple. Forces F2 and F4 are a couple (figure 4.7). Determine the ratio AC/BD in terms of the forces so that the body will be in equilibrium.
(a) S7P7A71 (Static - Equilibrium).
Pj Problem of Interest (PPI) is of the type equilibrium.
A couple consists of two equal and parallel forces acting on a body in opposite directions.
A couple is balanced by another couple when their moments are equal and tend to rotate the body in opposite directions.
For the couple F1 and F3:
Moment = F1 x AC or F3 x AC.
For the couple F2 and F4:
Moment = F2 x BD or F4 x BD.
So, body will be in equilibrium if F1 x AC = F2 x BD
F3 x AC = F4 x BD
F1 x AC = F4 x BD
F3 x AC = F2 x BD
So, body is in equilibrium if AC/BD = F2/F1
AC/BD = F4 /F3
AC/BD = F4 /F1
AC/BD = F2 /F3.
The point . is a mathematical abstraction. It has negligible size and a great sense of position. Consequently, it is front and center in abstract existential reasoning.
Single Variable Functions
Ordinary Differential Equations (ODEs)
The Universe is composed of matter and radiant energy. Matter is any kind of mass-energy that moves with velocities less than the velocity of light. Radiant energy is any kind of mass-energy that moves with the velocity of light.
Composition And Structure Of Matter
How Matter Gets Composed
How Matter Gets Composed (2)
Molecular Structure Of Matter
Molecular Shapes: Bond Length, Bond Angle
Molecular Shapes: Valence Shell Electron Pair Repulsion
Molecular Shapes: Orbital Hybridization
Molecular Shapes: Sigma Bonds Pi Bonds
Molecular Shapes: Non ABn Molecules
Molecular Orbital Theory
More Pj Problem Strings