Statics 10.36 & 10.37 - Determine the moment of inertia about the x and y axis. 

Hey Jerry, thank you for the comment. Reading comments like yours motivates me to keep growing the channel. I am happy the video was useful for you :)

Being honest I forgot about that formula. I did it in a more "complicated" way but works fine both methods :) Thank you for putting into the comments, more people could use advantage of this.

Thank you sir and your videos are really helpful.

Well done for prompting sir 🙏🙏

Sorry Naders, the last weeks of the semester are on top of me! Maybe in a couple of week will do. :)

Hello Adam, an apology if the video confuses because I used the "same" formula. To solve your question, what I did for Iy was to swap my base and height when picking them. In other words when we were doing Ix we were taking horizontal dimensions as base but when we were doing Iy we were taking vertical dimensions as base. (And we swap heigh dimensions in a similar case for Iy...)

yes, thats my observation too

Thanks!!

Thank you Demi!

Hello Gly.

Thank you Maanya! Keep it up

Hello Juan, Ix means the moment of inertia about the x-axis and similarly Iy means the moment of inertia about the y-axis. In a general statement having a larger moment of inertia means a larger resistance to bending. Now knowing this and according to the results of the video, the I beam has a larger resistance to bending about the x-axis.

@@LearningbyTeaching so meaning instead of calling the steel beam as I-Beam we can now call it H-beam for the right ortientation o lr correct position of the steel beam

@@pablojuan8896 The orientation of your beam depends on your application. Also, there are some beams called H-beams (Something I was not aware until this question came up)

Hello Jenelle, since the moment of inertia for each individual part was numerically big, I decided to use scientific notation (Which is 10^#).

@@LearningbyTeaching Thank you so much! Very helpful!

give you number i will explain it briefly

why did you Put mm^4?@@LearningbyTeaching

@@alaxgrimes3121 Hello my friend, moments of inertia have units of distance to the 4th power. Meaning mm^4 or m^4 or cm^4 or in^4... Now, if you may not know this... (Trust me, sometimes I dont know this things either...) what I recommend doing is to place your units into your equations and check the final units. As an example in this case: I = (1/12)* b* h^3 ----> If we consider only units and forget the numbers: (1/12) is unit less, its just a constant/number b = mm h^3 = mm^3 Therefore: I = mm * mm^3 = mm^4 Another tip I suggest is, check the examples from class or the book and see what your final units should be.