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Homework Help: Physics Tension Question, Need help

  1. Jan 5, 2010 #1
    Physics Tension Question, Need urgent help

    A Girl is swinging on a maypole in a playground. The Girl has a mass of 36Kg and, when she is moving with speed of 2.0m/s, the light rope makes an angle of 20 Degrees with the vertical. Consider the motion of the center of mass of the girl, which movies in a circle of radius r


    A) What is the vertical Component of the Tension in the Rope?

    B)What is the horizontal component of the tension in the Rope?

    C)What is the tension in the rope?

    D) What is the net force acting on the girl?

    E)What is the radius of the circle?

    Any Help would be Very Helpful. I did Part A with T=mg and got the correct answer of 360N, but i am stuck with B-E.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jan 5, 2010 #2

    PhanthomJay

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    Re: Physics Tension Question, Need urgent help

    If you got the vert comp. of the tension correct (T_v), implying no net force in the vert direction, then the horiz comp. T_h, and Tension (T) comes from trig and the pythagorean theorem. Find the net force in horiz direction and apply newton 2 and your knowledge of centripetal acceleration to solve for r.
     
  4. Jan 5, 2010 #3

    PhanthomJay

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    Re: Physics Tension Question, Need urgent help

    Duplicate Post.
     
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