Find the tension T in the horizontal string.
There will be an extensive use of example problems to reinforce concepts from the course. In this section, students will apply the equilibrium equations to solve two (2D) and three (3D) real world engineering problems. Select the extent of the free-body and detach it from the ground and all other bodies. Application of Static Equilibrium Equations. This corresponds to Newton’s Law of Inertia: “All bodies will maintain their state of rest or of uniform motion in a straight line that they are already in, unless acted upon by a force that would cause them to change their state of motion.” First step in the static equilibrium analysis of a rigid body is identification of all forces acting on the body with a free-body diagram. This state of equilibrium continues as long as the sum of the forces applied to the body remains zero. For example, if you put your phone on the table, there are two forces. P is the point of intersection and the vector sum of the forces is zero at all times. Static Equilibrium is when the net force of an object is 0, and the object is at rest. In the animation, the forces are contained in the plane Pxy. When a buoy is included OrcaFlex calculates the static equilibrium. The vector sum of these forces is equal to the zero vector. 3D buoys and 6D buoys can either be included or excluded from the static analysis.The lines of action are convergent (they cross at the same point).The lines of action are coplanar (in the same plane).
Static equilibrium is a state where bodies are at. A solid body submitted to three forces whose lines of action are not parallel is in equilibrium if the three following conditions apply : Statics is the branch of mechanics studying forces that act on bodies in static or dynamic equilibrium.