Marble spiralling inside a cylinder- New video

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SUMMARY

The discussion centers around a new video by Steve Mould that elaborates on the physics of a marble spiraling inside a cylinder, which relates to basketball shots that interact with the rim. Participants reference an older thread discussing similar concepts, highlighting the phenomenon where a basketball can rotate around the rim before falling through or bouncing out. The video aims to clarify why the center of gravity of the basketball may appear below the rim during these interactions, providing insights into the mechanics involved.

PREREQUISITES
  • Understanding of basic physics principles, particularly rotational motion.
  • Familiarity with the concept of center of gravity.
  • Knowledge of basketball dynamics and shot mechanics.
  • Ability to analyze video demonstrations of physical phenomena.
NEXT STEPS
  • Watch Steve Mould's video on the marble spiraling inside a cylinder for visual understanding.
  • Research the physics of rotational motion and its applications in sports.
  • Explore the concept of center of gravity in various objects, including sports equipment.
  • Review the original discussion thread on Physics Forums for deeper insights into the topic.
USEFUL FOR

Physics enthusiasts, basketball players, educators, and anyone interested in the mechanics of motion and sports dynamics will benefit from this discussion.

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Huh, very interesting!

Sometimes when I'm shooting basketball hoops, my shot will be off-center but inside the hoop. If it catches the rim just right (just wrong?), I can see several rotations around the inside of the rim before the ball finally falls through or gets spit back out. Several times I could have sworn that the center of gravity of the basketball was below the plane of the rim before it got shot back out, and maybe this video shows an explanation of why that can happen. It will still be frustrating to miss like that, but at least now I'll know why...
 
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A.T. said:
Steve Mould made a follow up video
With a contributing video from you, which inspired this one, if I may add ;).
 

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