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About tension (is this correct ?)

  1. Jun 4, 2009 #1
    tension.JPG

    If I wanna know the tension on strings is possible use the algebra below ?

    [tex]\Sigma[/tex]Fx = cos[tex]\theta[/tex] T2-T3 = 0
    and
    [tex]\Sigma[/tex]Fy = sen[tex]\theta[/tex]T2-T1 = 0
    so
    T2=T3/cos[tex]\theta[/tex]
    and
    T2 = T1/sen[tex]\theta[/tex]
    so
    T1cos[tex]\theta[/tex] = T3sen[tex]\theta[/tex]

    is this correct ?

    Thanks

    obs: this is not my home work, but a self study.
     
  2. jcsd
  3. Jun 4, 2009 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Yes, looks good. (Use sinθ, not senθ.) You can go further by expressing T1 in terms of the mass m.

    Nonetheless, this sort of textbook-style problem belongs in the "HW" forum, even if it's self study.
     
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