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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, |
