Recent content by John1767

  1. J

    Rotational Inertia: Hoop vs Disk

    Thanks for pointing me in the right direction!
  2. J

    Rotational Inertia: Hoop vs Disk

    Wow! I should have thought of that, sorry for the messy math but I just got so excited when I was able to cancel out mass. I guess the disk goes further regardless of somehow having more inertia, I guess it just threw me off that the disk had more inertia with the same mass and radius.
  3. J

    Rotational Inertia: Hoop vs Disk

    Alright, thank you. I'll just bring that up in my answer and hand it in. I appreciate the help.
  4. J

    Rotational Inertia: Hoop vs Disk

    So even though the disk has greater inertia, it will still have the larger horizontal displacement? Is there a concept that I'm missing or overlooked here?
  5. J

    Rotational Inertia: Hoop vs Disk

    Yes, this is the problem describing the hoop. It just defines the mass and radius with the same variables and describes the ramp situation.
  6. J

    Rotational Inertia: Hoop vs Disk

    The mass and radius of both the hoop and the disk are defined as m0 and r0 respectively, so maybe the question is giving me false information so I catch on to the false physics at work?
  7. J

    Rotational Inertia: Hoop vs Disk

    The question itself says that Id > Ih where Id is the rotational inertia of the disk and Ih is the rotational inertial of the hoop.
  8. J

    Rotational Inertia: Hoop vs Disk

    I know that a hoop should have a higher rotational inertia than a solid disk because its mass is distributed further from the axis of rotation. What I don't understand is how a disk of the same mass and radius can have a higher rotational inertia. If the objects roll freely their axes of...
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