5.5: Static Equilibrium, Elasticity, and Torque Last updated Mar 8, 2021 Save as PDF 5.4.8: Further Topics 5.5.1: Introduction Page ID33949 BoundlessBoundless ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy5.5.1: IntroductionTorque is the force that causes objects to turn or rotate (i.e., the tendency of a force to rotate an object about an axis).5.5.2: Conditions for EquilibriumThe first condition of equilibrium is that the net force in all directions must be zero.5.5.3: StabilityAn object in static equilibrium remains in the same state forever, but not all forms of equilibrium are the same.5.5.4: Solving Statics ProblemsWhen solving static problems, you need to identify all forces and torques, confirm directions, solve equations, and check the results.5.5.5: Applications of StaticsA simple machine is a device that changes the direction of a force or augments a force; simple machines fall into six categories.5.5.6: Elasticity, Stress, Strain, and FractureElasticity is a measure of how much an object deforms (strain) when a given stress (force) is applied.5.5.7: The Center of GravityThe center of gravity is read mathematically as: ‘the position of the center of mass and weighted average of the position of the particles’.5.5.8: Torque and Angular Acceleration