Method of Sections - Analysis of Trusses | Engineering Mechanics (🇵🇭 Tagalog 🇵🇭)

[@Casio478xx]

Para doon sa mga nagtatanong paano nakuha yung 3√ 3/4 horizontal distance sa member AB... Yung force kasi na 20kN, perpendicular sa member AB, so yung horizontal distance from A to B ang kukunin para magkaroon ng moment. Ang first step ay solve for the length of member BC by √ 3(sin30). Equal yan sa √ 3/2 Then draw a perpendicular line from point B to line AC. For example, let the point of intersection be O. Therefore, pag sinolve natin yung length ng OC at sinubtract natin sa AC, makukuha natin yung hinahanap na horizontal distance. So para makuha natin ang OC (from right triangle BOC), use (√ 3/2)cos60, which is equal to √ 3/4. Finally, (√ 3) - (√ 3/4) = 3√ 3/4

[@eliascomawas7963]

(√3/2)cos60 = ✓6/4

[@zeromercado5030]

ung √3(sin30) solution po ba sya for finding unknown side ng right triangle?

[@mierdaa]

​@@eliascomawas7963 3 lang po yung nasa square root then over 2

[@sanny2970]

wag nyo eh shortcut sir para lalong maintindihan,, salamat.. step by step lang kc may mga low gets ksing viewers tulad ko na kailangan ng maraming discussion para maintindihan..

[@jerichodacquel8794]

Thank you po. Grabe, ngayon ko lang naintindihan 'to. God bless po, engr.

[@engr.tobe1125]

Hindi ito naturo ng statics prof namin, dahil sa pandemic, good thing may ganitong vids sa YT. Thanks, sir!

[@Jcreates]

better than my online class discussion

[@charddell9525]

Pano nalang kaya kaming mga modular 😥

[@IvanMayuyo21]

​@@charddell9525musta engineering?

[@wala_lang_ba]

this reignited my love for math especially Engineering mechanics. Thought I hate math but since college for no reason, I was shocked how easy this subject can be.

[@lynpadilla3182]

Sanaol

[@johnllasaf2095]

Edi wow

[@angelocamposprado11]

Naol po

[@johneliefiesta3747]

lol

[@gabrielemanuelvillapando7446]

Thank you Sir. Hoping po for more examples and explanations about truss analysis. Nasa part ako ngayon ng buhay ko na nasa dilim ako. Kayo nagpaliwanag ng lahat salamat po Sir!

[@kardodalisay9505]

Anong year nyo naop

[@sanny2970]

maganda kayo mag discuss sir,, wag nyo lqng eh shortcut,, hehhe sana gumawa kpa maraming tutorial about mechanics start nyo sa vector..

[@abalosjohnlesterjoseph1337]

thumbs up sir! lahaat ng topic ng engineering from basic hanggang sa katapusan i discuss mo ! galing galiiing !

[@bonifacioblanco9332]

thank you, mas naging malinaw ang method of section

[@mye5676]

ang simple at linaw nyo po magturo. mas naiintindihan ko na ngayon 😭 thank you po!

[@rackygonzales5993]

mas naiintidhan ko pa to kesa sa teacher ko sa statics, dahil jan subscribe kita love you HAHA

[@wendelljavier1997]

ang daling maintindihan sa paraaan mo ng pag eexplain

[@mangabatkarenjoyc.5138]

Thank you, Engr.

[@riveracarlosgeroldm.3422]

sobrang natuto ko dito boss💓

[@awitlamadrid2729]

NATUTO AKO NG MATINDI A KAHIT SAGLIT LANG

[@hornillaringo5403]

This is better than my instructor hahahaha

[@chrisjaneldevilla8653]

Sir centroid please!! Solid ng tutorial nyo! Salamat dito

[@jlslargestcelibraryph1043]

Thank you sir! Big help po, supeerr!

[@Swallow1245]

Sa Methods of joints and sections talaga ako nahirapan sa statics sana nakita ko tong video mo sir last sem hahaha

[@jessieadrianparnada7073]

Milyong Salamat po!!!!

[@Ramounskee]

Buti pa po kayo sir, mabagal ang pacing. Prof ko po marathon! Hirap intindihin kasi po ang bilis! :D

[@veronicamercado7601]

Napakahusay po

[@johnlyodc.sacasan5495]

okay po yong discussion ninyo sir wag lang po sana i shortcut. hehhe thank you po.

[@raymejosvillacorteeducatio6837]

Salamat po Sir.

[@jemallauigan1813]

Thank you po sa videos, it really helps. More example pa po sana sir heheh.

[@anfaljoyyanit852]

hello po dun sasecond example how come na naging 3square of 3 over 4 po yung distance hihi. enlighten me please

[@justinemaesalud7381]

salamat po

[@veronicamercado7601]

Thank you so much po!

[@DU30PH]

Thank you sir

[@korben6342]

Sir, more example nga po sa last problem

[@ceedss2584]

Thank you so much Engr!

[@engrleir]

Welcome!

[@alcazarinphilipjohnd.9622]

@@engrleir sir tanong ko

[@alcazarinphilipjohnd.9622]

@@engrleir pwede ba?

[@arthjasonflores8910]

THANKYOU SIR BIG HELP!

[@engrleir]

Welcome! Thanks for watching! 🙏

[@johnyu3463]

Sir may video po ba kayo pano na solve yung measurements sa last part? Medyo mahina kasi ako sa ratio and proportion

[@diovaniealagao4669]

pa'no po nakuha yung special triangle na 3-4-cube root?

[@amielspencer7816]

more examples pa po Sir hehe ganda po manood eh

[@corrinedoblado8338]

na ol ganyan magturo

[@corrinedoblado8338]

thank you po

[@engrleir]

Thanks for watching!😆

[@ulrichsamonte3465]

Salamat master

[@hakdogdagreat4442]

Lods parequest naman ng tutorial about frame analysis

[@sanny2970]

sir gawa kayo tutorial first step para sa truss section.. kung pano sya ma identify ng mas madali,,. salamat.

[@kharencarba4340]

Pano po kunin yung length na 3square root of 3 over 4

[@maruinjayadvincula9320]

thanks

[@YvanVlogggs]

sa 11:12 nakuha ko naman sa calcu sa FEG is 208KN

[@mr_calcu]

Ask kolang po sa electrical engineering din po ba may solving din po ba sa mga trusses

[@chinkielagbas5776]

Thank you po! New subscriber here!

[@nygenkeithlouiseturla1431]

Re: Problem 2, Summation of Moment with Respect to Point A. Need pa po bang iconsider yung vertical component ng Force BD?

[@michaelflores2509]

Sa joint D po, (vertical y), yung DE po ma didisregard ba yung 50kN?

[@menchiepanes8352]

Thank you po💚

[@jhaqui_s3654]

11:11 I think force EG should be positive, since the moment is counterclockwise 🔄 ⬆️ ⬅️ Will be positive 🔁➡️⬇️ Will be negative So force EG will be in compression Am I right?

[@clarence__]

Napansin ko din po nagassume Ako as positive EG so 105(8)-60(4)+EG(3)=-200 or 200 compression

[@juniferlacsaya1]

Thank you💚

[@charlesrusseldechavez5241]

sir pwede rin po bang gawing assumption sa gantong side ng section is clockwise positive or mas matrabaho po?

[@say-4030]

Tumatanggap po ba kayo tutoring services Engr. Leir? Pwede niyo poba kong turuan kahit isang araw lang?

[@annica5940]

thank youuu! 💙

[@shitrecogniseshit3371]

Good day, may I ask what software you're using for your videos? Maybe at some point of my journey I'd start making videos for engineering also. Thank you

[@genekylecelino8122]

eyyyy

[@markicogo9900]

Hello sir, ask kolang kung pwede ka rin magmoment sa E para nakuha Forces DG

[@michaelbersabe8640]

hindi ba pag clockwise is positive at counterclockwise is negative?

[@lazyfitzqueak1284]

bat 3 sq. root of 3 over 4 distance ng AB?

[@Yajsopmat3410]

Sir paano mag calculate ng bowstring truss vertical nya para mag curve may video kBa nito?

[@Chessmates223]

Pwede pobang malaman yung process kung paano kinuha yung 3√3/4, yung sa last part po moment atm ng 20KN, sana po may maka sagot

[@Casio478xx]

Yung force kasi na 20kN, perpendicular sa member AB, so yung horizontal distance from A to B ang kukunin para magkaroon ng moment. Ang first step ay solve for the length of member BC by √ 3(sin30). Equal yan sa √ 3/2 Then draw a perpendicular line from point B to line AC. For example, let the point of intersection be O. Therefore, pag sinolve natin yung length ng OC at sinubtract natin sa AC, makukuha natin yung hinahanap na horizontal distance. So para makuha natin ang OC (from right triangle BOC), use (√ 3/2)cos60, which is equal to √ 3/4. Finally, (√ 3) - (√ 3/4) = 3√ 3/4

[@stevethesteve2007]

Yung last ex po, bakit po hindi kinuha yung BC?

[@jereere8181]

paano nyo po nakuha 3√3/4 ? sana masagot

[@mikkoneiljonasvicedo9178]

Paano po pag ang pinapahanap ay magkakalayo? Halimbawa po member BD, CE and FG.

[@hahahhahaa]

Saan po nanggaling yung (3√3)/4? 13:42

[@johnpaulovicta7912]

pano nyopo nakuha yung Hy?

[@mr.pilsen7689]

Shear and moment diagram naman sir.

[@kaykayjapon9404]

Good evening sir pano nyu kinuha yung 105KN?pag sa calcu na -1664 yung lalabas

[@clynnperalta8399]

@9:48 wala po bang force ang FH?

[@arjayarado4797]

Sir ask sana ako paano po nakuha ang value na 3square root of 3 / 4

[@joshcirilosygaco1138]

paano nas solve po yung 3(sqrt 3)/4 na distance?

[@johnpaulovicta7912]

pano nakuha FDG sa calcu?

[@jameswilliam6312]

San po nakuha ung 5?

[@ronnmanalo9387]

sir kahit di na po ba talaga kunin yung reactions? or depende lang sa problem?

[@kevsh4997]

Hello sir! Sa section method po ba mag-assume tayo na yung ibang members ay walang forces?

[@aniloubangalisan5677]

Pwede po kayo gumawa ng video pano po ma determine kung tension or compression? Please po🥺 Thank youuuu

[@engrleir]

Kapag ung force po palayo sa joint tension. Pag papunta naman sa isang joint compression po.

[@baltarriol.1404]

Pag nakuha mong value ng isang member is POSITIVE "TENSION yun ( bale Yung direction is papalayo sa point or yung napili mong joints... Pay NEGATIVE naman yung value nya COMPRESSION yun( kabliktaran lang ng tension yung direction ng compression)😁

[@draenzle]

if negative ung value nya, then yung direction is opposite sa inassume mong initial direction. Bale baliktarin mo lang ung direction. If negative nakuha mo sa compression, then tension dapat sya, and vice versa. Ibig sabihin lang ng negative is mali ung direction na inassume mo, baliktarin mo lang

[@christiana.bernal2758]

sir pano po kuhanin yung 3(sqrt3)/4?

[@allylouise]

Hi! AB is 1/4 of 3m (vertical distance of A-H) and since kinukuha po is moment you have to multiply (1/4 of 3m) to sqrt 3 (horizontal distance from A to B)

[@rommelsatajo8867]

@@allylouise thank you po

[@edriangoron5537]

hindi po ba yung distance nung AB sa example 2 ay 3/2 m ?

[@engrleir]

Yes po. AB is 3/2 m. I used the vertical projection which is ABcos30 so 3/2 x sqrt3 /4

[@geneclaudequinopa8819]

hello sir ask ko lang kung saan galing at paano nakuha yung 4,3,5 na adjacent opposite at hypotenuse

[@kylequerijero1002]

543 triangle tawag dyan para sa slope. Proportional yan if 2 sides ay given. If given kaagad na 543, then yun na ang gagamitin.

[@collin2349]

pa request po how to identify zero force members po

[@jamessaintnavarro8224]

Sir bakit d po pweding 4 ang eh cucut na member?

[@fatriciabarrocamo1103]

what if walang tab(y) and tab(x). yung binigay lang is tab?

[@franfeldanpasubillo8534]

sir, pa namandesign naman po ng truss na 30 m ang span, salamat po

[@pluckstring7309]

Sir if there is a horizontal force at the joint B, going towards the right. Do we have to include it in the moment equation or only the 40kn?

[@missterious9607]

Paano po kung walang given na angle sa problem no. 2?

[@cornbeef1162]

Engr. Paano po nakuha yung (3√3)/(4)?Kindly answer this. THANK YOU

[@planilladensonjr.b.2976]

Same question hehe

[@princesilva3803]

Example 2: 1.Find the Hypotenuse Dahil perpendicular yung angle na nakatapat sa √3 m so 90° at sya din ang highest angle and hypotenuse. 60° naman yung nakatapat sa opposite or line AB. Use law of sine to get line AB/opposite: sin 90/√3=sin 60/o o=(sin 60√3)/sin 90 o=3/2 - opposite 2. Perform another law of sine to get the horizontal distance of B. -Para magawa ang law of sine gumawa ng guhit from B hanggang base, so yung new angle ng nakatapat sa line AB ay 90° so sya na yung bagong hypotenuse at yung nakatapat naman sa dating hypotenuse na √3 m ang new distance(x) ay 60° naman ay siya yung bagong opposite/adjacent. To get new distance (x) use law of sine: sin 90/h=sin 60/x x=(sin 60*h)/sin 90 x=sin 60*(3/2)/sin 90 x=(3√3/4) m or 1.3 m Ganito nakuha ni sir yung distance sa example number pasensya na kung medyo magulo medyo mahirap magexplain sa chat😅 madali lng sana kung sa personal.

[@hectoranquilan1225]

@@princesilva3803 sir pwede po ba patulog mag solve ?

[@cjayvillahermosa6416]

Kuya Engr. May tatanong po sana ako kung paano na come up yung distance ni 20KN na 3squarokt of 3 over 4

[@kenthjonespaderes9419]

Itama nyo nalang ako pag mali,minultiply po ata sa area=1/2(bh), where,b=b/2(para makuha is centroid ng triangle which is perpendicular sa distance a=(3√3/4)). b=√3/2 h=3 a(distance)=1/2[(√3/2)(3))

[@nikotorralba4936]

@@kenthjonespaderes9419 hi lodi, ask lng po if yung b=b/2 is standard formula po ba?

[@kenthjonespaderes9419]

@@nikotorralba4936 pagkukuhain po ang centroid,pero kung medyo naguguluhan po kayo search nyo po yung properties of the centroid of triangle malalaman nyo po yan kung bakit yung base naging b=b/2.

[@amielspencer7816]

sir spring and suspended rod

[@richardp.bucaojr.5413]

paano po nasolve yung distance ng point A at B sa poblem 2 nyo po?

[@arlreycanicula8748]

(2)

[@lailaniduga5193]

Pano po malaman ung triangle 3/4? Sana po wag nyo ishort cut huhu

[@dariostamposofficial2710]

Actually ung 3√3/4 i don't know

[@annrequillas7759]

Hello po, pano po nakuha yung Hy=105kN 😢 thank you poo

[@junelsanchez6956]

Kala ko sa hinge mag momoment

[@hectorvelez1546]

wait, so going clockwise is negative and counter clockwise is positive? or the other way around?

[@rosalindacarzon8582]

Hello po, sa pagkakaalam ko ay pwede po siya kahit alin basta consistent lang po sa pag gamit sa buong solution 😊 ang clockwise po ay pwedeng positive or negative same answer pa rin po.

[@sanny2970]

sir pag method of section kahit saan lang ba pwede mag cut?? I means pwede sa side ng roller support o pwede rin sa kabila??

[@engrleir]

Yes. Kahit saan pwede.

[@k-lytesmigs5945]

Sir pwede po bang kayo nalang prof namin hahaha

[@QWARTZYMoba]

Good day sir. Paano po pag colinear yung dalawang joints but hindi kasama yung isang joint sa section na cinut, kasama pa po ba yung length nung section na yun?

[@engrleir]

Un ung length na icoconsider mo if magmomoment ka doon sa isang joint

[@winhezalingan2404]

Sir bat po 3 4 5 yung slope hindi 2 ,1.5, at 2.5 since nahati na po yung force EG?

[@engrleir]

in terms of triangles po, ung 3 4 5 at 1.5 2 2.5 ay similar triangles naman so parehas lang po sila ng angles

[@winhezalingan2404]

Thank you po engr . Pareho pala ng sagot hehe

[@macasachristianp.8537]

sir, papano po nakukuha yung angle na 3 4 5?

[@jomaralfaro1721]

usually tignan molang yung length ng kada members po. example yung 3 wc is the height ng member DE, 4 naman yung length ng member EG, tpos 5 naman makukuha mo using pythagorean theorem.

[@chakiochaque2211]

Square root of 4²+3² or square root of base²+height²

[@anthonybenitez673]

sir san niyo po nakuha yung horizontal distance ng force AB

[@tinmadrid3159]

Sir i know 1 yr ago na po tong comment nyo. Nalito rin po ako san nakuha ang horizontal distance ng AB. salamat

[@aeosmath5014]

@@tinmadrid3159 pede po sine law then cosine function of right tri after para maget po ang distance AB

[@planilladensonjr.b.2976]

Pano po nakuha yung sagot na 17.32KN?

[@rolandcedricservillano5134]

((20)(3√3/4))2/3)

[@rolandcedricservillano5134]

Ung 2/3 simplified na hehe

[@pickthea9197]

@@rolandcedricservillano5134 paano po nasimplified yun?