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Power transmitted in a string

  • Thread starter asz304
  • Start date
  • #1
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Homework Statement


Calculate the average power transmitted by the string. Data: mass of a 175 m long piece of the string is 1.47 kg

Homework Equations



P = 1/2*mu*omega^2*A^2*v

v- velocity
A- amplitude


The Attempt at a Solution




mu = m/L = 0.0084 kg/m


I dont know if there's a way to get A and omega. Do I need to get tension to find speed?

Thanks
 

Answers and Replies

  • #2
7
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Just created an account to answer this. I'm working on the same question now, you should have also been given an equation of the form y(x,t)=Acos(kx-ωt+∅). The co-efficient of t is your omega and the co-efficient of cos is your amplitude. Hope this helped.
 

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