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If an object is spinning with 100 m radius and the radius becomes 0 what happens?

  1. May 2, 2005 #1
    my educated guess is that with 0 radius the object would start rotating around the axe to keep the kinetic energy

    this would mean a transformation of translation into rotation

    am i correct?
    :rofl:
     
  2. jcsd
  3. May 2, 2005 #2

    Integral

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    First off you had to do a heck of a lot of work to reduce the radius.
     
  4. May 2, 2005 #3
    not really if you crank the spinning with the pulling by gearing the axe with the radius bar

    you apport a initial speed of 100 m/s to the object and according conservation of energy the object should keep those 100 m/s for ever (neglecting friction)

    the bar radius would be geared with the axe transforming the spinning into pulling
     
  5. May 2, 2005 #4

    Integral

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    i don't care how you gear it you have a lot of work to do.

    Please take a break from your wild imagination and go find a physics book.
     
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