Aaaand we're back. Awesome.
Okay. So when all the forces which act upon an object are balanced, then the object is said to be in a state of equilibrium. The forces are considered to be balanced if the rightward forces are balanced by the leftward forces and the upward forces are balanced by the downward forces. This, however, does not necessarily mean that all the forces are equal to each other. If an object is at equilibrium, then the forces are balanced. Balanced is the key word which is used to describe equilibrium situations. Thus, the net force is zero and the acceleration is 0 m/s/s. Objects at equilibrium must have an acceleration of 0 m/s/s. If an object is at rest and is in a state of equilibrium, then we would say that the object is at "static equilibrium". "Static" means stationary or at rest. The most common application involves the analysis of the forces acting upon a sign that is at rest. For example, consider a picture frame which hangs on a wall. The picture is in a state of equilibrium, and thus all the forces acting upon the picture must be balanced. That is, all horizontal components must add to 0 Newtons and all vertical components must add to 0 Newtons. The leftward pull of cable A must balance the rightward pull of cable B and the sum of the upward pull of cable A and cable B must balance the weight of the sign. Now let us suppose that the tension in both of the cables is measured to be 50 N and that the angle which each cable makes with the horizontal is known to be 30 degrees.
The question is- What the fuck?
-It ends.-
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