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Determine the tension

  1. Sep 10, 2011 #1
    1. The problem statement, all variables and given/known data
    A crate is being dragged across a horizontal icy sidewalk by two people pulling horizontally on cords. the net horizontal force on the crate is 56N 16 degrees S of E. The tension in cord 1 is 27N [E]. if friction is negligible, determine the tension in cord 2

    2. Relevant equations

    use component method

    3. The attempt at a solution

    like i dont know how to get the tension 2
     

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  2. jcsd
  3. Sep 10, 2011 #2

    PhanthomJay

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    Re: Components

    The resultant force and the force in cord 1 is given. Draw a sketch. Tell us what you know about vector addition.
     
  4. Sep 10, 2011 #3
    Re: Components

    well here is my sketch dont know if it is right or not and to be honest i do not know much about vector addition just that when you have all your forces on the x or y you add them together
     

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  5. Sep 10, 2011 #4

    PhanthomJay

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    Re: Components

    The problem is perhaps a bit unclear. The forces are applied parallel to the ground. The resultant force (the sum of the 2 vectors) is given. What you have shown as T2 is actually the resultant force. You must calculate the x and y components of the resultant force. Then the x components of each of the cord forces add up to give the x comp of the resultant, and the y comp of each cord force add up to the y comp of the resultant. This will allow you to solve for the x and y comp of T2, from which you can find the mag of T2.
     
  6. Sep 11, 2011 #5
    Re: Components

    can you draw an example?
     
    Last edited: Sep 11, 2011
  7. Sep 11, 2011 #6
    Re: Components

    is my diagram correct? Nvm i finally figured it out thank you for the help
     

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    Last edited: Sep 11, 2011
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