Engineering mechanics is mainly the study of forces and their effect on rigid bodies; it also involves the application of the principle of mechanics to solve real-time engineering problems.
Statics: It is the study of objects at rest, may or may not be under the influence of forces but in the condition of Equilibrium.
Dynamics: It is the study of objects in motion and the forces causing such motion like displacement, velocity, speed, acceleration, relative velocity etc.
Kinematics: Study of motion of bodies without consideration of the cause of motion. It deals with the space-time relationship of the motion of a body like displacement, velocity and acceleration.
Kinetics: Kinetics deals with the study of motion of bodies by considering the cause of motion.
Historical Development:
The subject of statics developed very early in history because its principles can be formulated simply from measurements of geometry andforces. For example. the writings of Archimedes (287- 212 BC.) deal wilh the principle of the lever.
Since the principles of dynamics depend on an accurate measurement of time. This subject developed much later. Galileo Galilei (1564-1642) was one of the first major contributor to this field. His work consisted of experiments using pendulums and falling bodies from some height . The most significant contributions in dynamics were made by Isaac Newton (1642-1727), who is known for his formulation of The Three fundamenlal laws of motion.
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