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A 171-N child sits on a light swing and is pulled back and held with a horizontal force of 73.5N. The magnitude of the tension force of each of the two supporting ropes is?

  • Physics -

    Let T be the single-rope tension and A be the angle from vertical

    2T sinA = 73.5
    2T cosA = Weight = 171

    Square and add both equations

    4T^2 = 73.5^2 + 171^2

    Solve for T

  • Physics -

    186.13

  • Physics -

    546545

  • Physics -

    satshdf

  • Physics -

    the answer is 94. I don't know how to do the problem though.

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