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Math Help - suspended particle

  1. #1
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    suspended particle

    I got a negative tension (-6.48), is this right? I think where i'm going wrong is when i label my diagram.

    a particle is suspended by two light inextensible strings and hangs in equilibrium. one string in inclined at 30 degrees to the horizontal and the tension in the string is of magnitude 40N. the second string is inclined at 60 degrees to the horizontal. calculate in N.

    a) the weight of the particle
    b) the magnitude of the tension in the second string.
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  2. #2
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    Quote Originally Posted by djr8793 View Post
    I got a negative tension (-6.48), is this right? I think where i'm going wrong is when i label my diagram.

    a particle is suspended by two light inextensible strings and hangs in equilibrium. one string in inclined at 30 degrees to the horizontal and the tension in the string is of magnitude 40N. the second string is inclined at 60 degrees to the horizontal. calculate in N.

    a) the weight of the particle
    b) the magnitude of the tension in the second string.
    In equilibrium condition
    T1*cos30 = T2*cos60......(1)
    T1*sin 30 + T2*sin60 = mg.....(2)
    Solve these two equations to find T1 and T2.
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