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Statics homework problem

  1. Jan 13, 2012 #1
    1. The problem statement, all variables and given/known data
    http://img843.imageshack.us/img843/5370/helpxd.jpg [Broken]

    2. Relevant equations

    Sin law

    3. The attempt at a solution

    I got to:

    F1/sin(105) = F1u/sin(45) = F1v/sin(30)


    I get F1u = - 219 and F1v = 254.5.... It says it is wrong, not sure what I did.
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Jan 14, 2012 #2
    Re: Statics

    For starters, take a look at your answer. You are providing it to 6 significant figures.

    Secondly, you are resolving a force of magnitude 250 into components. But you compute one of the components to be larger than the force. How can that be?
     
  4. Jan 14, 2012 #3
    Re: Statics

    Hint: When you resolve a vector into components you form a right triangle with the hypotenuse being the vector to be resolved.
     
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