Statics Challenge: Sword of Damocles

Is Damocles Safe?

Below is the story of the Damocles and a model of his dire situation.  Use your understanding of statics to ask for questions/quantities that will help you estimate whether or not Damocles is safe.  Put your questions in the comments.  Answers are due the last day of class in your notebooks.Image

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5 thoughts on “Statics Challenge: Sword of Damocles

  1. Pingback: Homework 13 (7/16/2013) | Engineering for Community

  2. Requested Info:
    ropes: 1/4 inch yellow polypropylene rope with a tensile strength of 5.5kN
    boulder: 1 ton with a diameter of 1 foot and 8 inches
    length of ropes: (can be determined using proportionality. Use the picture and remember that the diameter of the boulder is 1 foot and 8 inches)
    The person, knots and wire can hold 10,000 pounds
    The person can bench press twice his body weight (wow!)
    Distance between person and boulder (can be determined using proportionality. Use the picture and remember that the diameter of the boulder is 1 foot and 8 inches)

    It is all about vectors: http://www.mathsisfun.com/algebra/vectors.html Learn how to add vectors!

  3. Pingback: Homework 14 – June 18, 2013 | Engineering for Community

  4. The downward force of the weight: Weight is the force due to gravity. Since the gravitational force (weight) is between the rock and the earth, the force the rock experiences is towards the earth. The short answer is 1 ton (convert to Newtons, perhaps?)

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