![]() ![]() We begin with a discussion of problem-solving strategies specifically used for statics. 9.4: Applications of Statics, Including Problem-Solving Strategies Statics can be applied to a variety of situations, ranging from raising a drawbridge to bad posture and back strain.A neutral equilibrium is if its equilibrium is independent of displacements from its original position. A system is in unstable equilibrium if, when displaced, it experiences a net force or torque in the same direction as the displacement from equilibrium. A system is in stable equilibrium if, when displaced from equilibrium, it experiences a net force or torque in a direction opposite to the direction of the displacement. 9.3: Stability There are three types of equilibrium: stable, unstable, and neutral.To understand what factors affect rotation, let us think about what happens when you open an ordinary door by rotating it on its hinges. A rotating body or system can be in equilibrium if its rate of rotation is constant and remains unchanged by the forces acting on it. 9.2: The Second Condition for Equilibrium The second condition necessary to achieve equilibrium involves avoiding accelerated rotation (maintaining a constant angular velocity.9.1: The First Condition for Equilibrium The first condition necessary to achieve equilibrium is the one already mentioned: the net external force on the system must be zero. ![]() We have already considered a few such situations in this chapter, we cover the topic more thoroughly, including consideration of such possible effects as the rotation and deformation of an object by the forces acting on it. ![]() 9.0: Prelude to Statics and Torque Statics is the study of forces in equilibrium, a large group of situations that makes up a special case of Newton’s second law. ![]()
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