How to Find the Amplitude in SHM with Only K and Mass?

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SUMMARY

To find the amplitude of an object undergoing simple harmonic motion (SHM) with only the spring constant (K) and mass (m), one must understand the relationship between energy and amplitude. The total mechanical energy in the system is given by the equation Total Energy = 0.5 * K * Amplitude². Without information about the total energy, it is impossible to determine the amplitude directly from K and m alone. The angular frequency can be calculated using the formula Angular Frequency = sqrt(K/m), but this does not provide the amplitude without additional data.

PREREQUISITES
  • Understanding of simple harmonic motion (SHM)
  • Familiarity with the concepts of angular frequency and period
  • Knowledge of energy conservation in mechanical systems
  • Basic algebra for manipulating equations
NEXT STEPS
  • Study the relationship between energy and amplitude in SHM systems
  • Learn how to calculate total mechanical energy in SHM
  • Explore the derivation of angular frequency and its implications
  • Investigate the role of initial conditions in determining amplitude
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and simple harmonic motion, as well as educators seeking to explain the concepts of energy and amplitude in SHM.

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Homework Statement


If provided only the spring constant K and the mass of an object undergoing simple harmonic motion how do you find the amplitude?


Homework Equations


Angular Frequency = sqrt (k/m)
Period = 1/t

The Attempt at a Solution


Using the two equations above you can derive [tex]\omega[/tex] period, and frequency. This gives you [tex]\omega[/tex], period, frequency, mass and the spring constant. Is it possible to solve for the amplitude with these variables?
 
Physics news on Phys.org
Amplitude is a function of the energy in the SHM system and we don't have any information about that.

TotalEnergy = 0.5*K*Amplitude²
 

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