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Homework Help: A piano 10.11

  1. Jun 2, 2006 #1
    A piano wire (Y=2.0*10^10 N/m^2) has a radius of 0.80 mm and a length of 0.76 m. One end of the wire is wrapped around a tuning peg whose radius is 1.8 mm. The other end is fixed in place. Initially, there is no tension in the wire. Find the tension when the peg is turned through 2 revolutions.
     
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  3. Jun 2, 2006 #2

    siddharth

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    What are your thoughts/ideas on this problem? You need to show your work to get help.
     
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