Recent content by John1767
-
J
Why does a disk have lower rotational inertia than a hoop?
Thanks for pointing me in the right direction!- John1767
- Post #19
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
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.- John1767
- Post #17
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
Alright, thank you. I'll just bring that up in my answer and hand it in. I appreciate the help.- John1767
- Post #15
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
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?- John1767
- Post #13
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
Yes, this is the problem describing the hoop. It just defines the mass and radius with the same variables and describes the ramp situation.- John1767
- Post #12
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
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?- John1767
- Post #10
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
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.- John1767
- Post #7
- Forum: Introductory Physics Homework Help
-
J
Why does a disk have lower rotational inertia than a hoop?
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...- John1767
- Thread
- Disk Inertia Rotational Rotational inertia
- Replies: 19
- Forum: Introductory Physics Homework Help