It does work, remember you have to find the mass of the hole first. For the Annular disk the mass M is of the outer ring only. If you start with a full ring of mass M_total. I've worked this out before and it works. If you want a written 1 page solution just email me onlinephysicsninja@gmail.com and i'll be happy to walk you through the steps.
lolzomgz1337 you can use the method in this video to show that result. Be careful on the definitions of the masses. In the equation with a*a and b*b the mass is only the mass of the ring. Just be careful how you define the mass using the hole method and you will arrive to the same result
Excellent, thank you so much
A very helpful video thanx sir
super cool !
well explained..
Thanks
Now,Maybe i can pass my physics class,tnx
thank you so much
thanks sir thank you so much
5:10 the ^2 should be on the outside of the (4L) right
yeah
Why does this not follow for an annular disk? It may be M(R2²-R1²)/2 according to concept of yours but comes out to be M(R2²+R1²)/2
It does work, remember you have to find the mass of the hole first. For the Annular disk the mass M is of the outer ring only. If you start with a full ring of mass M_total. I've worked this out before and it works. If you want a written 1 page solution just email me onlinephysicsninja@gmail.com and i'll be happy to walk you through the steps.
This one is for you! ua-cam.com/video/QFRu72yVxss/v-deo.html
Why do I keep seeing the moment of inertia of a ring as "M(a^2 + b^2)" where and and be are the two radii. Shouldn't it be -, not +?
lolzomgz1337 you can use the method in this video to show that result. Be careful on the definitions of the masses. In the equation with a*a and b*b the mass is only the mass of the ring. Just be careful how you define the mass using the hole method and you will arrive to the same result
Sooooooo lengthy