After studying the material of this chapter, you should be able to:
1. Distinguish between static and dynamic equilibrium and state the two conditions for equilibrium.
2. Solve equilibrium problems using the two conditions for equilibrium.
3. Calculate the IMA, AMA, and efficiency of a simple machine.
4. State whether an object is in stable, unstable, or neutral equilibrium.
5. Use Hooke's law to solve problems.
6. Distinguish between stress and strain and between tensile stress, compressive stress, and shear stress.
7. Write the equations for the relationship between stress and strain for the three types of deformation of an elastic solid. Use these equations to solve problems.
