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Homework Help: Physics Help

  1. Oct 13, 2011 #1
    An athlete at the gym holds a 2.8 kg steel ball in his hand. His arm is 76 cm long and has a mass of 4.0 kg. What is the magnitude of the torque about his shoulder if he holds his arm in each of the following ways?

    a) Straight out to his side, parallel to the floor
    b) Straight, but 50° below horizontal
  2. jcsd
  3. Oct 13, 2011 #2


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    The rules of these forums state that you need show some work on the problem before we can help you.

    What have you tried?

    Where are you stuck?
  4. Oct 13, 2011 #3
    Like the guy above says. But the question is clearly related to moments if that helps.
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