Center of Mass of an Irregular Object

How to find the center of mass of an irregularly shaped, flat object. Want Lecture Notes? www.flippingphysics.com/cente... This is an AP Physics 1 topic.
0:00 Intro
0:08 The problem
0:57 Translating the problem
2:52 Area instead of mass
4:42 Solving the problem
6:05 Understanding the answer
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Thank you to Jonathan Sullivan-Wood for transcribing the English subtitles of this video.

Пікірлер: 45

  • @matiassantacruz5487
    @matiassantacruz54872 жыл бұрын

    Holy hell I don't understand why this channel has so few subscribers, it's insanely good, it's funny, it entertains and it's actually extremely well paced and ensures that it gives multiple perspectives you could encounter when tackling a problem. I tip my hat to you Sir!

  • @FlippingPhysics

    @FlippingPhysics

    2 жыл бұрын

    Thanks for the love!

  • @quahntasy
    @quahntasy6 жыл бұрын

    Nice video! Didn't really needed to know about this but it was fun to watch!

  • @FlippingPhysics

    @FlippingPhysics

    6 жыл бұрын

    It is even better that you did not "need" to know this and you learned anyway!

  • @megscorner3596
    @megscorner35963 жыл бұрын

    Thank you so much for teaching physics! I couldn't understand the center of mass and thought I would never until I saw these videos! Thank you so much!

  • @FlippingPhysics

    @FlippingPhysics

    3 жыл бұрын

    Happy to help!

  • @devrimblup68
    @devrimblup682 жыл бұрын

    I can honestly say this is the best channel for me on youtube. And you are the best physics teacher i have ever saw. You really really help me. I wanna say thank you very very much

  • @FlippingPhysics

    @FlippingPhysics

    2 жыл бұрын

    Thanks for the love!

  • @paranoidparadigm886
    @paranoidparadigm8862 жыл бұрын

    3:10 Ouch....you don't have to hurt me that way 😆

  • @alhaithamaljabri2203
    @alhaithamaljabri22035 жыл бұрын

    You are awesome!:] Great content sir!

  • @FlippingPhysics

    @FlippingPhysics

    5 жыл бұрын

    Thank you!

  • @aravindhanr6548
    @aravindhanr65482 жыл бұрын

    very excellent videos to learn concept from beginning .the way you approached to solve problems like a beginer makes to connect with you very easily.keep rocking

  • @FlippingPhysics

    @FlippingPhysics

    2 жыл бұрын

    Thanks so much!

  • @sgtghost141
    @sgtghost1413 жыл бұрын

    Well we could also take the vertices of the shape to be point masses [taking one of them on the origin] and plot them on a coordinate system and calculate the system's Centre of mass , like in the previous video. I did it that way and got the answer for the X-CM but I think I did some calculation mistake in the Y-CM. I done it this way because the shape was given constant density.

  • @nickkowalski7979
    @nickkowalski79796 жыл бұрын

    Excellent video!

  • @FlippingPhysics

    @FlippingPhysics

    6 жыл бұрын

    Thank you!

  • @fredd298
    @fredd2985 жыл бұрын

    Everybody brought thiccness to the party

  • @Adumbb
    @Adumbb2 ай бұрын

    will this be tested for the ap phys 1 exam?

  • @oliverrosas5734
    @oliverrosas57348 ай бұрын

    OOOOmMMGGGGG you are a life saveeerrrrr!!!! Thank You!!!!!!!!!!

  • @DarthVader-fu2nr
    @DarthVader-fu2nr2 жыл бұрын

    Hey there! Just wondering if you can use volume instead of area and still get the same answer?

  • @FlippingPhysics

    @FlippingPhysics

    2 жыл бұрын

    Yes, however, as you can see at 3:40, the only reason that would work is because the thickness of the object is constant, if the thickness were not constant, you would not be able to use area and get the correct answer.

  • @nayfajohan3810
    @nayfajohan38103 жыл бұрын

    thank you!

  • @FlippingPhysics

    @FlippingPhysics

    3 жыл бұрын

    You're welcome!

  • @treesattheriver
    @treesattheriver2 жыл бұрын

    thank you very very much

  • @FlippingPhysics

    @FlippingPhysics

    2 жыл бұрын

    You are very very welcome

  • @gardenmenuuu
    @gardenmenuuu3 жыл бұрын

    sir isn't center of mass moment of inertia/mass or we ignore the distance squared term?Please help me solve this doubt

  • @carultch

    @carultch

    2 жыл бұрын

    They are related concepts, but are two separate concepts. Center of mass is also of interest for moment of inertia, because an object's nature if not constrained to an axis, is to rotate about its center of mass. Center of mass is the total of the first moments of mass, all divided by the total mass. Center of mass refers to a point. If you start from another point, it has the units of meters. Moment of inertia, is the second moment of mass, which is also known as rotational inertia. Moment of inertia has the units kg * m^2. Moment in general refers to a quantity multiplied by distance (or radius vector) from a reference point. First moment would mean there is an exponent of 1 on the radius vector. Second moment would mean there is an exponent of 2 on this radius vector (which is a self-dot product that converts it to a scalar). You may hear of torque referred to as a moment, whose full name is "moment of a force". Like the first moment of mass, it is a product of a radius vector and a quantity in question. In the case of torque, the quantity in question is force, and given two vector quantities and a desire for a vector resultant, it is a cross product. In engineering, both torque and moment are used, in order to have a way to distinguish them when torques occur in two axes in the same situation. Generally, torque is along the long axis (twisting), and moment is perpendicular to the long axis (bending).

  • @RaviRanjan-ov1ci
    @RaviRanjan-ov1ci4 жыл бұрын

    You Guys are awesome Sadly I didn't find you in my JEE PREPARATION DAYS Anyway Now i can

  • @FlippingPhysics

    @FlippingPhysics

    4 жыл бұрын

    I wish I could find a better way to let JEE people know about my videos. Do you know of any way I can tell people studying for the JEE that these videos are available for free for them to use to study?

  • @therewasonceacatnamedmeimc247

    @therewasonceacatnamedmeimc247

    4 жыл бұрын

    @@FlippingPhysics why not name your videos 'prep for jee 'besides the title . Most people search for that on KZread .( When they do they might find your videos ) Besides this is also useful for NEET .

  • @FlippingPhysics

    @FlippingPhysics

    4 жыл бұрын

    @@therewasonceacatnamedmeimc247 Okay. I severely dislike putting things like that in the titles of my videos, however, I am willing to give it a try. So, on a one month trial period, I have placed "(AP Physics 1/JEE/NEET)" in the title of all 14 of my Simple Harmonic Motion videos and also "This is an AP Physics 1/JEE/NEET topic." in each description. At the end of January I will compare statistics to one year ago and see if it made any difference. Thanks for the suggestion. We will see ...

  • @therewasonceacatnamedmeimc247

    @therewasonceacatnamedmeimc247

    4 жыл бұрын

    @@FlippingPhysics great!! I always type the name of an examination like jee and NEET while browsing for videos . Now that you've given it a try it'll work wonders !!

  • @FlippingPhysics

    @FlippingPhysics

    4 жыл бұрын

    After 1.5 months with "(AP Physics 1/JEE/NEET)" in the title of all of my Simple Harmonic Motion videos, KZread shows no increase in views from India for those videos. In addition, KZread shows that no videos of mine have been found via a "JEE" or "NEET" search word. This is frustrating. So, I have added the following hashtags to all of my SHM videos: #APPhysics1 #JEE #NEET Let's see if this makes any difference. 😇

  • @fireblast3273
    @fireblast32732 жыл бұрын

    God Bless your soul

  • @srigirinathp8799
    @srigirinathp87996 жыл бұрын

    Please do ur videos on fluid mechanics

  • @FlippingPhysics

    @FlippingPhysics

    6 жыл бұрын

    Someday. But not any day soon. Sorry.

  • @fritnez7463
    @fritnez74632 жыл бұрын

    4:17 how did m2 cancel?

  • @carultch

    @carultch

    2 жыл бұрын

    Everybody brought density to the party.

  • @fritnez7463

    @fritnez7463

    2 жыл бұрын

    @@carultch Thanks.

  • @tylervargas5838
    @tylervargas5838 Жыл бұрын

    420th like

  • @LegalizeAlejandro
    @LegalizeAlejandro3 жыл бұрын

    I think you're using physics as an excuse to show of your performance art hahaha