Harmonic Motion

  • Thread starter redhot209
  • Start date
  • #1
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Homework Statement


A 0.296 kg mass is attached to a spring and executes simple harmonic motion with a period of 0.18 s. The total energy of the system is 3.3 J. Find the force constant of the spring. Answer in units of N/m.


Homework Equations


k=m(t/2[tex]\pi[/tex])^2


The Attempt at a Solution


k=296(0.18/2[tex]\pi[/tex])^2
I get 0.0002429276699 but it is wrong. Any ideas what i did wrong?
 
Last edited:

Answers and Replies

  • #2
159
0
Your equation is wrong. The period should be T = 2pi times the square root of (m/k). I believe that your equation has (k/m) instead of (m/k). Hope that helps.
 
  • #3
Note also: you should learn the trick of carrying through your units and checking them... that would have helped you find this error.
 

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