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    LynnBuch's Avatar
    LynnBuch Posts: 1, Reputation: 1
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    #1

    Dec 14, 2011, 10:34 PM
    If an 11 lb ball being pulled away from a pole at 30 what is the tension on the rope
    11 * 2.2 = 24.2
    t = w ma = m(g a)

    fn mgcos(30)
    or w (24.2)(9.7) = 237

    fn = mgcos(30)
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Dec 15, 2011, 06:47 AM
    Lynn: sorry, I'm not following what you are doing here. It seems that you may have tried to cut and paste your entry from another PC application Word perhaps?), and unfortunately that doesn't work well on this site. Please edit your question to clarify it for us. Also, when showing calculation please include units. However - if "fn" is the tension in the rope then you should have W/fn=cos(30) , or fn=W/cos(30).
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