Torque Question Please Help, Physics!?

NetherCraft 0

Hold your arm outstretched so that it is horizontal. Estimate the mass of your arm and the position of its center of gravity.

What is the gravitational torque on your arm in this position, computed around the shoulder joint?

1 Answer

  • Whatever mass you decide to use, and whatever distance from the from the shoulder joint you use,

    multiply 1/2 the mass by the distance from the joint.

    That will give you kg/m. torque, but if you need N/m., multiply the 1/2 mass by g.

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