Recent content by usernamed2

  1. U

    Angular acceleration of a falling arm

    Thanks!
  2. U

    Angular acceleration of a falling arm

    awesome! Thank you so much for the help!
  3. U

    Angular acceleration of a falling arm

    τ=(L/2)F=(L/2)mg But the value of the length in the formula for inertia will remain the full length right??
  4. U

    Angular acceleration of a falling arm

    L/2, the very center of the length?
  5. U

    Angular acceleration of a falling arm

    Homework Statement Assume your arm is a solid rod, 0.740 m in length, free to rotate about your shoulder (so its moment of inertia is (1/3)ML^2). If you hold your arm out sideways, and then completely relax your muscles, what is the initial downward angular acceleration of your arm? Homework...
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