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1. Are all periodic motions simple harmonic? Explain and give an example of a pe

ID: 2037719 • Letter: 1

Question

1. Are all periodic motions simple harmonic? Explain and give an example of a periodic motion that is not simple harmonic. (3 pts) 2. For simple harmonic motion, how are the acceleration and displacement? Support your answer using relevant equations. (5 pts) 3. (a) If you were to plot y versus m using the equation y - (o/k)m + yo please explain how would you calculate the value for k? (b) Which method you would use? (6 pts) 4. (a) What is a simple pendulum? (b) If you were to suspend a baseball bat from one end and let it swing back and forth, does it make a simple pendulum? (c) Under what an oscillating mass tied to a string constitute a simple pendulum? (6 pts) conditions does 3 4 5 6 8 9 0

Explanation / Answer

1)

no all periodic motion is not simple harmonic

eg :
: sunrise sunset,pattern of day,weather,moon cycle are periodic but not simple harmonic,

and also,
a pendulum that is started from a large angle is periodic but not simple harmonic...

simple harmonic motion means that the restoring force is proportional to the displacement...

for a pendulum, this is approximately true for small angles of displacement, but for larger angles, the motion is more complicated to describe, so this is one such example
so i guess you now understand.!! thnks

2)

In a simple harmonic motion, the acceleration of the object is directly proportional to its displacement from its equilibrium position it is always directed towards the equilibrium position.

The relevant equation:

a = -(2pi*f)2 x

where,

f-> frequency = 1/Period

x-> displacement

Negative signt denotes that a is directed towards the equilibrium position.