How To Use The Parallelogram Method To Find The Resultant Vector

This video explains how to use the parallelogram method to find the resultant sum of two vectors. You need to be familiar with law of cosines formula in order to make this work.
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[@TheOrganicChemistryTutor]

Physics PDF Worksheets: www.video-tutor.net/physics-basic-introduction.html Full-Length Videos & Exams: www.patreon.com/MathScienceTutor/collections Addition of Vectors - Notes: www.video-tutor.net/addition-of-vectors.html

[@kalebdida]

polygon?

[@brookebain7250]

I always dreamt of the day where I could unsubscribe to your channel. I know that sounds weird, but chemistry was hell for me and I had to take it all the way to orgo 2. I graduated university last Wednesday. Just wanted to say thank you for all of the helpful videos, I wouldn't have graduated without the help. So happy to be done with this chapter in my life. For everyone in my past position, you can do it! Work hard and the success will follow you.

[@justadude721]

He offers more than just chemistry perhaps his other videos may still benefit you

[@badaralam4599]

Congrats and good luck for your rest of journey

[@eddiek8950]

Thank you I will really make it as well in Jesus 🙏 name.

[@Daniel-hk8jx]

Congratulations @brookebain7250 thanks for the advice ☺️

[@WellnessNetWellnessNet]

Blud thinks hes the main character 😂😂😭😭💯💯💯🗣🗣

[@justadude721]

My teacher taught us to include a scale of maybe 1cm:10N and draw the vectors according to the magnitude and direction. After that he taught us to measure the resultant vector and use the scale to find the force.

[@mangomanlassi7779]

yeah same we learnt that too, i prefer the mathematical method though

[@justadude721]

@@mangomanlassi7779 my physics teacher used to teach math. He quit because he said the workload was too much and for some reason he rather not do stuff the math way.

[@mangomanlassi7779]

@@justadude721 tbh with you, the mathematical method guarantees higher accuracy than graphical.

[@justadude721]

@@mangomanlassi7779 true but sometimes in my exam papers they ask for an appropriate scale I also prefer the mathematical method as it's more accurate and less tedious but unfortunately I can't use it in some situations

[@Adfelix23]

The scale method is only suitable for two perpendicular vectors

[@trexinvert]

Parallel vectors → Parallel angles(opposite angles equal to each other) → (solved: two sides and one angle known) → Law of cosine → Done

[@nyanya444]

u posted just when i needed this :0 thank you so much!

[@Auto_08]

Lucky!

[@user-ne3ki7pn2y]

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[@user-yf2ky9ww9j]

I really needed this ! Thank you

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Me too and thank to this guy, God bless youu❤

[@nurasylnurasyl7229]

in this way children can also understand you😃😃,thankfull

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[@mychemicalreaction73]

how do you know which method you have to use and when? The parallelogram method or the triangle method

[@favourebubechi6659]

Thank you bro. This was really helpful

[@Smithhavensn33]

this man is my lord and saviour fr

[@primekidus9419]

But how do we find the direction suing the parallelogram method? Please respond fast, my test is on monday

[@educationforknowledge2075]

Best math and physics and chemistry teacher

[@nightteen5230]

And biology too

[@2dragonfire514]

Really helped. Thanks!

[@Ibitoroko-omieTamunoene]

Thank you so much for this video... I finding difficult with my textbook you made me understand everything

[@kalebdida]

sir what about polygon method?

[@touetouejerome2491]

Nice thanks sir I’m always satisfied

[@SuperYoonHo]

Thanks sir!!!

[@GhulamAli-zz7gm]

Very nice video

[@ikechukwuanumenechi2352]

Thanks 😊

[@shevinrahman1588]

I do 1000 google searches and then finally come to here . This being the last search.

[@barnabassolomon1629]

We meet again, old friend

[@user-vg5ds4iw1j]

guys this is wrong he should use A^2 + B^2 + 2ABCOStheta not -2ABCOStheta

[@user-hr8kf8ss5h]

Hey your understanding is too wrong, the formula used in the above tutorial is Law of cosines applied in for a triangle. While the equation according to you has theta equal to angle between two vectors with both tails of vector coinciding. Also the theta in law of cosines entitles for angle between the two vectors of head and tail coinciding consecutively.

[@user-qi1hy4qd4z]

repeat pls!​@@user-hr8kf8ss5h

[@imibee5184]

Why are you breaking F2 and F1 into their respective Fx and Fy component before finding Fr? Can someone plz help?

[@sofe7278]

what if I use displacement instead of force

[@totoval4362]

I got R=140N, 30 degrees N.E.. I used a scale of 1N=.1cm to fit in a notebook😅😅. 7.3 difference. Very little difference right?😅😅

[@Aiii_me6682]

I've never learned 🤔this before

[@kangmoabel]

Physics master 🙏🙏🙏

[@primekidus9419]

🇪🇹?

[@kangmoabel]

@@primekidus9419አው and you ?

[@primekidus9419]

@@kangmoabel yes 😅

[@kangmoabel]

how long have You been watching the organic chemistry tutor ?

[@user-qi1hy4qd4z]

why "-" in a²+b²+2abcos theta, isn't it ?

[@NithinChrist13]

Exactly a²+b²+2abcos theta is right……

[@sagnitamiru7939]

Isn't the formula is a²+b²+2abcostetha

[@geraldmangara3205]

Where were you in my physics exam😭

[@FMirzan-kb5fy]

I calculate I got -ve at -7200

[@cyrusarias178]

is the angle correct?

[@M4straks]

You can use the given angle and use the formula c2=a2+b2+abCosc

[@potafish5107]

Thx had problems with it

[@Tt-vi4em]

TYSM

[@Tt-vi4em]

YOUVE ALWAYS HELPED ME WITH EXAMS AND I PASSED AND NOW I GOT A VACCATION AS A PRESENT BECAUSE YOUVE TAUGHT ME EVERYTHI G I NEED TO KNOW, SO I JUST WANTED TO SAY THANK YOU FROM THE BOTTOM OF MY HEART FOR HELPING ME FOR YEARS

[@nivedhamohan6390]

Im learning it in my 5th and i wanna die

[@NatnaelsistuNatnaelsistu]

I like it starboy

[@chyperdaddy]

please tell me is this addition or subtraction?

[@tiruyehulugeta6401]

If you are asked to find resultant then it means addition

[@tsehayenegash8394]

why you use cosine law? the question is use parallelogram not cosine law?

[@krushna_prasad]

Isn't the formula for R² is a²+b²+2ab cos theta

[@justadude721]

It's -2ab cos theta

[@omowolemofeyisopeiyanuoluwa]

Physics man🎉🎉😮

[@mmbb7276]

What if you have 3 vectors? Does he have any videos on that?

[@mangomanlassi7779]

then split the vectors into x and y components, individually sum the x and y components, then take those x and y resultants and create a right angled triangle where you can use pythagoras theorem and inverse tan to get the full resultant vector

[@mmbb7276]

@@mangomanlassi7779 bro you are a legend thanks!

[@mangomanlassi7779]

@@mmbb7276 np haha, hope it made sense

[@thoughtsarefree1]

then use POLYGON LAW

[@thoughtsarefree1]

@@mangomanlassi7779 why not use POLYGON LAW

[@ryanchiang9587]

360degrees = 2pi

[@marvelstudios8810]

Who are you bro ?

[@SuperYoonHo]

cool person

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[@zainab713]

batman

[@ahmedelsamadisy8338]

21700

[@gp-ls8lh]

Bro show ur face plss

[@kingramail6129]

how he get the 120° #respect

[@justadude721]

Corresponding angles He shifted the left side of the parallelogram to the right as F1 and F2 shouldn't be pointing towards each other

[@thesciencehubskb]

Interior angles add up to 180 degs 60 degs + x = 180 degs x = 180 degs - 60 degs x = 120 degs

[@amogus436]

​@@thesciencehubskb but aren't triangle angle adds up to 180? so the angle that intersects F1 and Fr is 0? i don't understand the concept

[@zunayedsafi5396]

Wrong formula

[@hannahamoako3678]

It's right

[@sewenetmekonen2563]

:o

[@massfoodblessings5675]

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[@Pinkltonn]

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[@ivyblue6467]

I really needed this! Thank you