Classical Mechanics is a branch of physics that deals with the motion of objects and the forces that cause this motion of bodies in accordance with the general principles by Isaac Newton's laws of mechanics.  It is concerned with the behavior of objects at speeds that are much less than the speed of light and sizes that are much larger than atomic dimensions.  Classical Mechanics was first formulated by Sir Isaac Newton in the late 17th century and is also known as Newtonian mechanics.  Classical mechanics gives accurate results as long as it is limited to large objects and the speeds less than the speed of light.

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Classical Mechanics has many practical applications in engineering, such as in the design and analysis of structures, vehicles, and machines.  It is also used in astronomy, where it is used to predict the motion of celestial bodies, and in the study of the behavior of fluids, where it is used to predict the flow of fluids.