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Find Tension of the wires

  1. Oct 22, 2007 #1
    Ok here the problem i need to find the tension of the three wires but im very lost and don't know where to start or how to finish.

    so for i got 32*98 = 313.6N
    i don't know what to do next
    can someone please lead me in the correct direction to solve the problem.

    [​IMG]
     
  2. jcsd
  3. Oct 22, 2007 #2

    malty

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    Gold Member

    First thing you need to do is to resolve all the tensions into triangular forces i.e translate a vector so you can treat the three tensions as applying the triange law for vectors
    [tex]\vec{ac}=\vec{ab}+\vec{bc}[/tex]
     
  4. Oct 22, 2007 #3
    ok so i have Fnet=M*a

    so for the tension on the rock i have a tension and a weight
    so


    ball
    \/ t1
    |
    |
    /\ t1

    so would this be the correct equation to solve for T if it is what would the acceleration be because its not give or i don't think there is anyway to find it



    T1=313.6 * A
     
  5. Oct 22, 2007 #4

    malty

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    Gold Member


    Before even attempting to solve for T you must resolve each tension into it's components. Simply applying a formula here is almost useless.
    I must also apologies for not being able to understand what exactly you mean by the diagram
    \/ t1
    |
    |
    /\ t1
    A isn't given, but it's a safe bet to assume that gravity is present.
     
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