How To Use The Parallelogram Method To Find The Resultant Vector
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- Опубліковано 20 сер 2022
- 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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polygon?
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He offers more than just chemistry perhaps his other videos may still benefit you
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Parallel vectors → Parallel angles(opposite angles equal to each other) → (solved: two sides and one angle known) → Law of cosine → Done
Please keep up with the good job. Excellent and entertaining.
u posted just when i needed this :0 thank you so much!
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.
yeah same we learnt that too, i prefer the mathematical method though
@@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.
@@jamescarter9944 tbh with you, the mathematical method guarantees higher accuracy than graphical.
@@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
The scale method is only suitable for two perpendicular vectors
I really needed this ! Thank you
This is so helpful brother thank you
Thank you bro. This was really helpful
Really helped. Thanks!
Nice thanks sir I’m always satisfied
in this way children can also understand you😃😃,thankfull
Thanks sir!!!
But how do we find the direction suing the parallelogram method?
Please respond fast, my test is on monday
Very nice video
Thank you so much for this video... I finding difficult with my textbook you made me understand everything
sir what about polygon method?
this man is my lord and saviour fr
how do you know which method you have to use and when? The parallelogram method or the triangle method
Thanks 😊
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I do 1000 google searches and then finally come to here . This being the last search.
Why are you breaking F2 and F1 into their respective Fx and Fy component before finding Fr?
Can someone plz help?
We meet again, old friend
I've never learned 🤔this before
Where were you in my physics exam😭
Thx had problems with it
what if I use displacement instead of force
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?😅😅
is the angle correct?
You can use the given angle and use the formula c2=a2+b2+abCosc
Physics master 🙏🙏🙏
🇪🇹?
@@primekidus9419አው and you ?
@@kangmoabel yes 😅
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TYSM
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please tell me is this addition or subtraction?
If you are asked to find resultant then it means addition
Isn't the formula is a²+b²+2abcostetha
What if you have 3 vectors? Does he have any videos on that?
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
@@mangomanlassi7779 bro you are a legend thanks!
@@mmbb7276 np haha, hope it made sense
then use POLYGON LAW
@@mangomanlassi7779 why not use POLYGON LAW
I like it starboy
why you use cosine law? the question is use parallelogram not cosine law?
Im learning it in my 5th and i wanna die
Physics man🎉🎉😮
guys this is wrong he should use A^2 + B^2 + 2ABCOStheta not -2ABCOStheta
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.
Isn't the formula for R² is a²+b²+2ab cos theta
It's -2ab cos theta
360degrees = 2pi
Who are you bro ?
cool person
Coolest person
batman
:o
21700
Bro show ur face plss
how he get the 120°
#respect
Corresponding angles
He shifted the left side of the parallelogram to the right as F1 and F2 shouldn't be pointing towards each other
Interior angles add up to 180 degs
60 degs + x = 180 degs
x = 180 degs - 60 degs
x = 120 degs
@@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
Wrong formula
It's right
yay im fail yayyyy
I really needed this! Thank you