ABSTRACT

As noted in Chapter 2, kinematics is the study, using geometric methods, of motion (position, velocity, acceleration) without regard for the forces that either cause or result from motion. By contrast, kinetics concerns the prediction of motion of particles or bodies that are acted on by known forces. Kinetics can also involve solutions for reaction forces acting on a particle or body when the motion is specified. This chapter considers the motion of particles in one dimension (motion in a straight line) or two dimensions (motion in a plane). Mastery of the kinematic material of the preceding chapter is essential for understanding the concepts and mechanics of this chapter. There are many new variables introduced in this chapter, and the following nomenclature is provided to help you keep track of them.