Mechanics is the branch of
physics dealing with the behavior of physical objects when they are subjected
to forces or displacements. Classical
Mechanics is the field of mechanics that deals the physical laws that
describe the motion of bodies under the action of a system of forces at every
day sizes and velocities. Together they form bases of physics.
mechanics is limited in terms of the sizes and speeds at which it is
applicable. The is because when the size of the objects gets extremely small quantum mechanics comes into play
but on the macroscopic level quantum
mechanics produces essentially the same results as classical mechanics.
Further more when the speed of the objects gets extremely fast; that is
approaching the speed of light relativistic mechanics comes into play while at
the speed experienced in every day life relativistic mechanics produces
essentially the same results as classical mechanics. Furthermore at larger
scales of size and distance celestial mechanics come into play however this is
actually just an expansion of the principles of classical mechanics to larger
Classical mechanics has virtually
unlimited applications particularly useful at the scales of size and speed of
everyday life since those were the scales it was developed on. Every aspect of
human life is affected by the application of force in one manner or another. Classical
Mechanics is the foundation of physics because it is where physics had it start
and where its main participles were laid down. Classical Mechanics works fine
within our every day experience but reaches its limits when dealing with the very
fast the very small.