Superposition of two prependicular harmonic oscillations graphical and analytical method
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Answer:
If in case of periodic motion, the body moves back and forth repeatedly about a fixed position
(called equilibrium or mean position), the motion is said to be oscillatory or vibratory. For
instance, the motion of the earth around the sun or the motion of the hands of the clock, are
examples of periodic motion, but they are not oscillatory in nature. The motion of piston in an
automobile engine, motion of a ball in a bowl, motion of needle of sewing machine or the bob of
a pendulum clock are all examples of oscillatory motion.
An oscillating body is said to execute simple harmonic motion (SHM) if the magnitude of the
forces acting on it is directly proportional to the magnitude of its displacement from the mean
position and the force (called restoring force) is always directed towards the mean position.
Thus, we can see that simple harmonic motion or SHM is actually a special case of oscillatory or
vibratory motion. We will study SHM in detail in this unit. Some examples of simple harmonic
motion include.
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