Solve a cumbersome problem

  • Thread starter tukms
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  • #1
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I read this stage but I don’t understand , be generous to analyze it for me

Thank you in advance
 

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  • #2
tiny-tim
Science Advisor
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hi tukms! :smile:

the wheel is rotating clockwise, then the student turns it over so that it's rotating anti-clockwise

so its angular momentum has changed (in fact, it's reversed)

from conservation of angular momentum, that change must be balanced by an equal change in the angular momentum of the student. :smile:
 

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