Rotation - collision with an obstacle

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SUMMARY

The discussion centers on the physics problem of analyzing rotation and collision with an obstacle, specifically focusing on the conservation of momentum around point O. Participants highlight the challenge of accounting for the torque generated by gravitational force (mg) while noting that it does not produce an impulsive torque. The conversation emphasizes the importance of understanding torque dynamics in rotational motion when obstacles are involved.

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cupid.callin
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Homework Statement


attachment.php?attachmentid=33660&stc=1&d=1301349871.jpg



The Attempt at a Solution



First i thought i could apply conservation of momentum about O

but about O ... mg has a torque ... now what to do ?
 

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hi cupid.callin! :smile:
cupid.callin said:
but about O ... mg has a torque ...

but not an impulsive torque :wink:
 

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