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Little help with practice problem for exam

  1. Sep 22, 2004 #1
    Hello, I'm new here. Basically I have this practice excercise for my exam.:

    http://capa.hep.uprm.edu/msuphysicslib/Graphics/Gtype06/prob09_xph183f6pic2.gif [Broken]

    My general problem is that I'm bad with separating forces into components, and I assume this excercise deals with that. Can someone plz point me in the right direction to solving this problem? Any help will be greatly appreciated.
    Last edited by a moderator: May 1, 2017
  2. jcsd
  3. Sep 22, 2004 #2
    okay well, the vertical component of the top string would be equal to weight... baseically 4.3 kg*g(acceleration of gravity). that would be tension*sin27... find out tension, the horizontal components of the two strings cancel out... and the horizontal component of the top string would be tension*cos27

    ah, by the way, there is a homework help section on the forum, scroll down to the lower section of the webpage and you should see it
  4. Sep 22, 2004 #3


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    Since gravity is vertical and the string on the right is horizontal you already know the horizontal and vertical components of the other string! :-)
  5. Sep 22, 2004 #4
    hmm apparently I'm doing something wrong because I dont get the correct answer.

    In order to get the tension in the lower string i have to find out the horizontal component of the top string correct?

    I'm posting this in the homework help section. Sorry for not noticing this.
    Last edited: Sep 22, 2004
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