Superposition principle allows the displacement of distance between the overlap region to be determined. If the displacement has along the x axis , the displacement is +ve and –ve it is below the y axis . The displacement of the pulse y= y1 + y2
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The most common periodic motion is simple harmonic motion. An object that oscillate about the mean position in space, where x is constant can be represented by yt graph as shown above. The displacement y and time t are represented by the equation y = A Sin wt Such Oscillations are called sinusoidal because y and t are related through the same function from the figure point of O (min displacement) are called NODE while that of the maximum displacement are called ANTINODES. The phase of the oscillation is called wt. We can analyze equation . Using the value of phase angle to determine the motion of object. The period between O and t,y and T2, 2T and 3T describes the repitation and characterized the oscillation generally by simple harmonic motion.
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