Derivation of an S.H.M. Equation

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In summary, to derive the equation for simple harmonic motion, you will need to find the relationship between acceleration and displacement, and use Newton's second law to determine a in terms of x. This will lead to the equation a = -w^2x, where w is the angular frequency and T is the period of the motion.
  • #1
fatboy_1989
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Can anybody show me how to derive the equation for SHM. (T = 2 x (Pie) x (root m/k))

Help would be greatly appreciated, as i need it for coursework
 
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  • #2
No one will show you, but we will help you along it deriving it yourself.
How can you model harmonic motion? What function would you use?
 
  • #3
it depends on cases. but I can give you the general way

first you should find the relationship between the acceleration of oscillator and its displacement

Then, by means of Newton's second law, F=ma
find the a in terms of x if a is directly proportional to minus x
then, for S.H.M a = -w^2x , where w is the angular frequency of motion
w = =2pi/T
T=2pi/w
 

1. What is an S.H.M. equation?

An S.H.M. equation is a mathematical expression that describes the motion of an object undergoing Simple Harmonic Motion (S.H.M.), which is a type of periodic motion where the restoring force is directly proportional to the displacement from the equilibrium position.

2. How is an S.H.M. equation derived?

The S.H.M. equation can be derived using the principles of Newton's Second Law of Motion and Hooke's Law. By considering the forces acting on an object undergoing S.H.M., we can set up and solve a differential equation to obtain the equation of motion.

3. What are the key components of an S.H.M. equation?

The key components of an S.H.M. equation are the amplitude, frequency, and phase angle. The amplitude is the maximum displacement from the equilibrium position, the frequency is the number of cycles per unit time, and the phase angle represents the initial position of the object in its motion.

4. What is the significance of an S.H.M. equation?

An S.H.M. equation is significant because it allows us to mathematically model and predict the motion of objects undergoing S.H.M. This type of motion is prevalent in many real-world systems, such as pendulums, springs, and even sound waves.

5. Can an S.H.M. equation be used to describe other types of motion?

While an S.H.M. equation is specifically derived for objects undergoing Simple Harmonic Motion, it can also be used to approximate the motion of other oscillatory systems, as long as the restoring force is directly proportional to the displacement from equilibrium. However, for more complex motion, a different equation or model may be more appropriate.

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