what is kinematics

Kinematics is a subfield of physics that describes the motion of points, objects, and systems of objects without considering the forces that cause them to move. It is often referred to as the "geometry of motion" and is occasionally seen as a branch of mathematics. Kinematics is used to describe the motion of systems composed of joined parts, such as an engine, a robotic arm, or the human skeleton/2%3A_Kinematics/2.1%3A_Basics_of_Kinematics). The study of kinematics can be abstracted into purely mathematical expressions, which can be used to calculate various aspects of motion such as velocity, acceleration, displacement, time, and trajectory/2%3A_Kinematics/2.1%3A_Basics_of_Kinematics). Kinematics is very useful in the conceptual design of mechanical systems, and it models motions mathematically using algebra. Kinetics, in contrast to kinematics, considers physical properties such as the mass of the bodies or the forces driving them. Kinematics is used in everyday life for explaining motion without reference to the forces involved.