ABSTRACT
Mechanics is a physical science that can be subdivided into statics, which deals with the forces acting on bodies that are at rest, and dynamics, which deals with bodies in motion. Dynamics is further subdivided into kinematics, which deals with the motion of bodies without regard to the forces causing the motion, and kinetics, which deals with the relationships between the forces acting on a body and its resulting motion. Length is a measure of displacement or relative position. Mass is a measure of the amount of material in a body. Time is a measure of the succession of events. The general study of the relationships between length and time is called kinematics. A quantity which has magnitude only is known as a scalar quantity. Examples of scalar quantities are time, speed, volume, density, mass, and temperature.
