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Free-body
diagrams In order to use
Newton's
second law of
motion it is necessary to determine the forces
acting on a body so that the resultant force
(F) can be found. Thus a system of objects
such as springs, dampers and masses should be
divided up into its separate components There are equal and
opposite forces (F) at the ends of each the spring
and damper. The free body diagram of
the mass m1 is thus, If we now apply
Newton's
second law we
obtain the equation of motion of the mass m1
as, and the free body diagram
of the mass m2 is, and the equation of motion
of the mass m1 is, |