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March 27, 2017

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If a trapeze artist rotates once each second while sailing through the air and contracts to reduce her rotational inertia to one-third of what it was, how many rotations per second will result?

  • physics - ,

    3 rotations/sec, since the
    (moment of inertia)x(rotation rate) product must stay the same. It is a measure of angular momentum.

  • physics - ,

    3 rotations/sec, since the
    (moment of inertia)x(rotation rate) product must stay the same. It is a measure of angular momentum.

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