Calculating Power Transmitted in a String

[asz304]

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 don't know if there's a way to get A and omega. Do I need to get tension to find speed?

Thanks

 

[Sethius]

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.