How to find the centroid of simple composite shapes

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This engineering statics tutorial goes over how to find the centroid of simple composite shapes. In this case, its a composite shape made up of a triangle, rectangle, and semicircle. We find the overall centroid of this composite shape.
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Thanks for watching, I hope it helps!

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1 окт 2024

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Комментарии : 122

@MacAlmighty 5 лет назад

This 9 minute video was better than the 3 hours worth of lectures in my statics class. Thank you!

@Engineer4Free 5 лет назад

Thanks bruh. You can check out all the free statics videos I made at engineer4free.com/statics cheers!

@magaganemohlekeseedi3093 Год назад

@@Engineer4Free understandable

@Skystrike70 6 лет назад

Thanks dude. Explained it better than the education I'm PAYING for.

@Engineer4Free 6 лет назад

RU-vid University FTW :)

@Milkisu_u 6 лет назад

wow same. I'm currently studying all the modules the night before my midterms. And I can say i learned a lot more than months worth at school

@bhimashankarkattimani7074 2 года назад

@@Engineer4Free hii

@Luka_c123 Год назад

Jesus private highshools suck that bad?

@yaotlzodoxis9893 Год назад

@@Luka_c123 colleg ;(

@anthonykolenda6998 6 лет назад

wow great explanation, i guess i can become an engineer on youtube instead of in school

@Engineer4Free 6 лет назад

hahaha basically... RU-vid University FTW

@anthonykolenda6998 6 лет назад

I think your website is great too, its real nice looking and really easy to use and follow, great job

@Engineer4Free 6 лет назад

Thanks! :)

@atulabid5029 3 года назад

well said

@justblaze4707 2 года назад

Who's bad professor is the reason they are here in 2021!? XD

@Engineer4Free 2 года назад

Me 😂

@JesusMartinez-zu3xl 2 года назад

Wow!! I was able to watch the proofs and examples in less time than one lecture. Thank U!!

@Engineer4Free 2 года назад

Glad it was helpful!!! =)

@jamesrand9778 5 лет назад

A lovely little tutorial. Very well explained, good example used. Ten out of ten. Thank you.

@Engineer4Free 5 лет назад

Thanks a lot James =) =)

@Vikashkumar-mc3ll 5 лет назад

the centroid of semi circle is 0.63 so the x3 will be 2+6+0.63=8.63

@wiz10152 5 лет назад

So if (5.08, y) is the centroid, how can the y-coordinate be found? Love your videos by the way, they're saving my life this semester!

@Engineer4Free 5 лет назад

You can find the y coordinate by doing the exact same process, just switching every instance of "x" with "y"

@turdshack4228 4 года назад

48 people DIDN’T find this helpful??? This is what will help me pass the test tomorrow.

@Tony-ij4kd 4 года назад

Same here 😂

@Engineer4Free 4 года назад

Hope it went well!!!

@Rumiiiiiiiiiiiiiiiiiiii 4 года назад

There is special place in heaven for such teachers....

@Engineer4Free 4 года назад

Thanks Sohaib 🙌

@biblesaurus6862 4 года назад

First off I appreciate the audio and video quality, and thanks for making it so simple!

@Engineer4Free 4 года назад

Hey thanks! I do try to keep it professional 👌👌

@professional_silent_trumpe1540 4 года назад

The dislikes are from all the teachers and professors who are obsolete because of you

@Engineer4Free 4 года назад

😂 maybeee

@baconpancakes8899 3 года назад

what I want to know is when do I use 2/3 or 1/3 for triangles

@Engineer4Free 3 года назад

the centroid is 1/3 of the way from the tall side, and 2/3 of the way from the short side, for right angle triangles in this orientation

@baconpancakes8899 3 года назад

@@Engineer4Free Alright thank you

@waterdrinker7958 4 года назад

My teacher “taught” me this in 90 minutes when she could have done it in 9!

@Engineer4Free 4 года назад

😏

@Riri-qq1bc 3 года назад

You are literally a lifesaver, thank you so much!

@Engineer4Free 3 года назад

Happy to help!! You can also see a few more videos on the topic here: engineer4free.com/statics see videos 58-65 =)

@marcochamba8780 4 года назад

great explanation, but it would have been better if you do the y bar as well.

@Engineer4Free 4 года назад

Thanks, but yeah that was my bad. I didn't bother because at the time when I made this it was a just precursor to simple distributed loading problems wihh vertical loads in which the y bar is never needed, but it could be for sloped members or wind/pressure loading etc... So whoops sorry!

@milesthacker2994 2 года назад

in 9th grade doing this it’s so stressful but you came in clutch

@Engineer4Free 2 года назад

9th grade, wow! Thats a record I think.🤜🤛

@trevorbrooke9946 2 года назад

9th grade? Bro where you going to school at? MIT high school?

@manishapatel2078 4 года назад

Could you please upload y-axis video as well. Thanks

@nurulanisshahira8753 3 года назад

Hello. I have a question. about to find the x bar for triangle. Im confused wether to use 1/3 or 2/3 . TQ

@Engineer4Free 3 года назад

The centroid is 1/3 of the way away from the tall side, and 2/3 of the way away from the short side 😊

@1000billzv 4 года назад

Hi! Thanks for making these informative videos !! They really help. But I am getting stuck on one concept. How do we know when to use which centroid formula for a triangle ? Why didn't we use the 1/3 b for the centroid as opposed to the 2/3b? What is the main difference? Thanks for all your help.

@MrMegaomer 4 года назад

the smaller side I believe you use the 1/3 and the bigger one you use 2/3 when you divide the triangle from the middle

@Engineer4Free 4 года назад

Jahh ✌️

@AG-bb3yw Год назад

Great video but so disappointed u didn't do y bar😢

@leodelameck5725 4 года назад

Small advice on u is dat the colour that u are using is not well visible how about to use black or red colour?

@Engineer4Free 4 года назад

Hey yeah, I made this video quite a long time ago, and have since tried to make the pen stokes more visible. Thanks for the feedback!!

@KenteDominion 6 месяцев назад

You're not that audible though

@salimnour 6 лет назад

does any one did, the (y) i have 1.44

@Engineer4Free 6 лет назад

Yup that is correct!

@marwaannindheerbirtacalank1485 6 лет назад

salim nour Haa sxp

@luismoreno5311 4 года назад

Another great video thank you!

@Engineer4Free 4 года назад

Thanks Luis!! 🙂

@motovnc19 4 года назад

i have a question bro if i want to get the y-bar is it just y-bar=sum(YiAi)/sum(A )

@Engineer4Free 4 года назад

yeah

@T.Kavya... 2 месяца назад

Very very Tqq Sir...❤🎉🎉❤❤

@kinmoto6096 4 года назад

8 units away form the origin??? so thats start from zero Right??

@Engineer4Free 4 года назад

Yea

@e...........6293 4 года назад

sir can you do a video on getting y bar?

@Backflipmarine 4 года назад

Is the y(bar) the sam method except using y values?

@Engineer4Free 4 года назад

Yeah, sorry in hindsight I should have also calculated it in this example. See videos 58 and 59 here: engineer4free.com/statics for more info ✌️

@harithizaham5819 3 года назад

hye if the triangle is upside down. for y bar i need to use 2(b)/3 again? because it will start from the shortest one?

@Engineer4Free 3 года назад

If the triangle was flipped vertically, the short side would still be on the left, so the calculation would be the same.

@harithizaham5819 3 года назад

@@Engineer4Free thank u so much

@sharadkumar8353 5 лет назад

i Came .. i Saw .. i Subscribed ! 😇

@Engineer4Free 5 лет назад

Awesome, thanks Sharad!!! =)

@nazaningr9970 11 месяцев назад

10/10

@mr.j6677 6 лет назад

This was a ton of help! Thank you!

@Engineer4Free 6 лет назад

Cheers dude, glad to hear it!

@cadorarenielm.9980 3 года назад

Thankyou idol its Helpful clear explanation than my teacher

@Engineer4Free 3 года назад

Happy to help =) the full playlist is here: engineer4fee.com/statics

@cadorarenielm.9980 3 года назад

@@Engineer4Free waoh thanks a lot idol👍🤞❤

@rajasingh9898 5 лет назад

Now I am your scriber dude... Love from india thank-you

@Engineer4Free 5 лет назад

Glad to have you Raja! Tell some friends 🙂🙂

@PCCC89 2 года назад

Probably late but is the Ybar equal to 0.1630?

@LunaSyren 4 года назад

I don't get where you found ??1.5??

@Engineer4Free 4 года назад

The shape on the right is a semi circle. It is 3 units tall (see y axis). That means the diameter of the (would be full circle) semicircle is 3. Radius is 1/2 diameter, = 3/2 =1.5

@otifavour8325 6 лет назад

Why isn't the x of the semi circle 0 here?

@Engineer4Free 6 лет назад

The center of area of a full circle is in "the middle." Just draw a semicircle by itself and try to locate the "middle." You wouldn't draw the middle touching an edge, it would be about where I have drawn it in this video. Make sense? circles and semicircles are different shapes.

@散华-l9m Год назад

this is the best physics lesson i never had b4

@marimarrica8240 4 года назад

What about for y?

@Engineer4Free 4 года назад

Yes whoops, I should have also demonstrated ybar. I didn't, because in most statics problems like this, you only need xbar, but ybar is the same, just swap all the x's for y's. so ybar=ΣyiAi/ΣAi

@siteramodel7414 6 лет назад

greatttttt thanx MR this is helpful

@Engineer4Free 6 лет назад

Awesomeee thanks for the comment!

@shangrila123 5 лет назад

Sir, when will xbar or ybar for the centroid of a shape be equal to zero?

@Engineer4Free 5 лет назад

X bar will be zero if the centroid lays on the y axis. Y bar will be zero if the centroid lays on the x axis.

@shangrila123 5 лет назад

Thank you Sir :)

@victoryroyal4372 4 года назад

thanks man you've helped clarify things

@charlesdevera6665 7 лет назад

Why is it the x component of the triangle is 2(b)/3?

@kodygrieve4972 7 лет назад

because hes taking all the measurements from the origin of the graph. the component is 2/3rds from the origin or 1/3 from the nearest side.

@Engineer4Free 7 лет назад

Yeah thanks for being a bro Kody.

@charlesdevera6665 7 лет назад

Woahh thanks this helped me a lot in my statics exam. 😁

@Engineer4Free 7 лет назад

Glad to hear it!!!

@kodygrieve4972 7 лет назад

absolutely lit fam

@sinhikad8325 6 лет назад

What will be the y coordinate of the Center of mass of semicircle

@Engineer4Free 6 лет назад

The the centroid of a semicircle is 4r/3π away from the flat edge, and halfway between the top and bottom when it's oriented like this. y coordinate is therefore r away from both the top and the bottom