1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Transverse component of tension in a string

  1. Jan 31, 2010 #1
    1. The problem statement, all variables and given/known data

    A transverse sinusoidal wave is produced at one end of a long horizontal string by a bar that moves with an amplitude of 1.12 cm. The frequency of motion of bar is 120 Hz . The linear density (m) of string is 117 gm/m . The other end is attached to a mass of 4.68 kg that hangs under gravity. Find the maximum magnitude of transverse component of tension . Also find the maximum power transferred along the string . Take g=10m/s^2


    3. The attempt at a solution

    The weight of 46.8 N is being balanced by tension. So tension in the string should be 46.8N. We can get the velocity of wave by the formula v=(T/m)^.5 which comes out to be 20m/s. To find the maximum magnitude of transverse component of tension we need the maximum angle made by the string with the horizontal. We can write the wave equation as y=Asin(2(pi)nt) , n is the frequency (120 Hz) . But how to find the angle ? The power transferred by the string is proportional to A^2. But how to find its variation with time ?
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Transverse component of tension in a string
Loading...