Great Video! Loved how you mister Mackey'd your way through the question m'kay

@PhysicsNinja

8 ай бұрын

Glad you enjoyed it!

Best channel so far

Thank you..it has really helped me

Great video, thanks

Thanks for video👍🏻

your videos are awsome

loving the second method! thank you!

@PhysicsNinja

Жыл бұрын

It’s my favorite as well

Hi, im trying to calculate the inertia of a cylinder with a non-uniform mass, In my uni project we have a annulus ring of cement and an annulus ring of pla plastic, that makes a cylinder. could i calculate the inertia for each annulus ring, and add them togther to find the inertia of the cylinder with a non-uniform mass?

@krelle5604

Жыл бұрын

Dunno if non-uniform mass is the right word, English is not my first language, but i mean that i have a cylinder made up of a cement ring, in the outer layer of the ring and the center part of the ring is off pla plastic, could i divide them up into 2 diffrent annulus ring, calculate the inertia for each and add them togther to find the inertia for the full cylinder?

@PhysicsNinja

Жыл бұрын

Yes, you can add them up

Wouldn’t the distance to the origin from any small mass in the ring be r^2+z^2

@PhysicsNinja

2 жыл бұрын

Yes, but we just want the distance of the mass to the axis of rotation, not the origin.

So essentially the moment of inertia is independent of the thickness “h” cause I’ve got the same result for a 2D ring

@PhysicsNinja

Жыл бұрын

Well is does depend on the Mass, so the thicker the ring the bigger the moment of inertia

Saved from failing mechanics