Physics 12 Moment of Inertia (1 of 7) Parallel Axis Theorem: Example 1

In this video I will find the moment of inertia of 2 spheres connected by a rod rotated about the center of the rod.

Next video in the moment of inertia series:

[chankaimun]

I love this man. Am able to rush learning this chapter right before a class test haha

[donedeal]

Better explanation than my book and professor combined. thank you very much!

[kalibos]

Excellent video as usual Michael, thanks a bunch

[fadhla]

Thank you very much. I learned so much from you valuable lectures.

[chaitu-gbww]

Sir the moment of inertia of a solid sphere is 2/5ML(square) and the mass of a hollow sphere is 2/3ML(square) . Please mention in the title that it is a solid sphere.Thank you video was very helpful.

[sharleenmaelonogan]

sorry sir, I'm a little confused. Is the mass of bar the same as the mass of the spheres?? You have used one M for the bar and the spheres.

[samanthawinters]

you are great I have watched a lot of your videos! thank you so much

[pravinloharlohar]

Sir please explain why example to understand. Very nice 👍👍👍

[andrewjustin]

6:40 So do you imply they weren't attached at the ends in the problem? I assumed they were attached at the ends?

[mlthinker]

I have a very important question: in another video regarding a "baton" you have the same setup and you don't use the parallel axis theorem you get completely different answers... why is this different than the baton problem?

[thebookishcacophony]

Sir I didn't understand why we took the moment of inertia about the axis of the sphere and used parallel axis theorem when we know that two fixed spheres dont rotate about their axis?

[Whateather]

I'm having trouble visualizing the object, do both solid spheres rotate vertically and what happens to the rod in between them? Is it connected to both spheres?

[prithvialva]

Hello sir. What happens when the axis of rotation passes through the Centre of one of the spheres?How will the Moment of inertia change?

[TheSprouseloverever]

why didn't you use Md^2 for the center of mass for the rod but you did for the two spheres? is it because the spheres are the ones that are rotating?

[luisanarodriguez]

Is the mass of the parallel axis theorem (the + md^2 portion) of the sphere or of the bar (object or the thing it's spinning around)?

[Leviathan]

with the power of ilectureonline I'm gonna actually understand what's happening in Physics 1301W

[stevekhan]

Hey do you teach at el camino college ????