How to find Resultant Force - Two Forces Mechanics : ExamSolutions

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  • čas přidán 7. 10. 2011
  • Resultant Force Mechanics.
    Calculating the resultant force will be required in your mecanics and physics exams. I'll show you how to do this for 2 forces.
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Komentáře • 89

  • @ExamSolutions_Maths
    @ExamSolutions_Maths  Před 10 lety +46

    You're welcome

    • @sheetalwalia9637
      @sheetalwalia9637 Před 4 lety

      ExamSolutions I have a doubt how can we tell in which direction the force will move ?!! Please tell

    • @velvetwisteria6237
      @velvetwisteria6237 Před 4 lety +1

      @@sheetalwalia9637 For which example are you asking the question ? If it's for the 6N and 8N example, then the direction goes from the starting point where the particle is to the head of the last vector that you drew .

    • @hayatburak9252
      @hayatburak9252 Před 3 lety +2

      @@sheetalwalia9637 direction of the resultant force.

  • @xxrichbotxx181
    @xxrichbotxx181 Před 3 lety +10

    Omg, I had so much struggle figuring out what my Phys. lecturer was showing us. But once I watched ur vid, I understood instantly. I'm pretty sure I aced my test btw. So thanks

  • @davidgoodman8469
    @davidgoodman8469 Před 8 lety +52

    you really should write textbooks, you would get a lot of sales. many people including myself struggle to make sense of what the textbooks we are using say, yet get the concept very quickly once we watch your videos. if you did start writing textbooks I would buy them.

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 8 lety +17

      Thank you but I think I will keep going with the videos and trying to improve the website

    • @perpetualtom6649
      @perpetualtom6649 Před 7 lety +7

      textbooks are always going to be like that for maths though. unless you want to include a full peter narrative with each page

    • @davidgoodman8469
      @davidgoodman8469 Před 7 lety +2

      at the time I was starting I was using CGP text books, which I don't care what people say are god awful at explaining anything. i have since found text books that explain things well, so I just had bad resources when I started. Although exam solutions videos are normally more efficient then the text books.

    • @markrunnalls7215
      @markrunnalls7215 Před 5 lety

      Yes indeed totally agree.

    • @Elika12345
      @Elika12345 Před 3 lety

      Same

  • @dinopuff7354
    @dinopuff7354 Před 2 lety +1

    Thank you So MUCH my gosh, going through blinkin A-level's and i still can't get my head around this concept, and how people are solving it and by 3 minuites i've already got perfect clarity on how it works, Thank you!

  • @Redyrection
    @Redyrection Před 8 lety +1

    I had another method, but this video opened the door to it...THANK YOU

  • @samass44
    @samass44 Před 10 lety +3

    that helps me a lot!! Thank you

  • @mush2224
    @mush2224 Před 12 lety +1

    thank you I've been looking for ages for a video like this all the one I found I either couldn't understand what they were saying or they were talking about area. Thanks

  • @Rebekah_xo
    @Rebekah_xo Před 3 lety +1

    Thank you for this sir, do helpful! Do we need to know how to do it both ways or can we just stick with the first method?

  • @kudzaimatinde4225
    @kudzaimatinde4225 Před 4 lety +6

    I was actually going to stress myself had I not come across this vedio thank you

  • @Arfahfatima188
    @Arfahfatima188 Před 3 lety +1

    Thanks aloot. You hepled me alot 🤩🤩🤩 loved the way of teaching 🤩

  • @stadricklenageiki831
    @stadricklenageiki831 Před 3 lety

    Thanks for helping and sharing your knowledge ....😍😍

  • @lobsterb7379
    @lobsterb7379 Před 5 lety +1

    Perfect thankyou.

  • @kamie993
    @kamie993 Před 3 lety +1

    thanks helped alot we were shown this in college

  • @creativityinmyblood5187
    @creativityinmyblood5187 Před 3 lety +1

    Really helpful lacture 🔥

  • @dacreeper8984
    @dacreeper8984 Před 8 měsíci

    Thank you so much sir!👍

  • @P3AR5Y
    @P3AR5Y Před 12 lety +1

    great presentation good video

  • @isaacmshanga3505
    @isaacmshanga3505 Před rokem

    Watching this from Zambia 🇿🇲 Ndola nortec college
    I find it easy watching from CZcams than listening to my lecture

  • @mustafakadhum5370
    @mustafakadhum5370 Před 6 lety +2

    Thanks Alot I struggled to understand the relation between the vector triangle law and the component forces but when u placed them side by side realised that the triangle law of vectors uses the cosine rule since its not a right angle triangle otherwise the component forces method creates a right angle triangle so allows trigonometry thanks alot

  • @jaketracy1375
    @jaketracy1375 Před 9 lety +1

    Thank you good sir.

  • @salmanalotaibi8222
    @salmanalotaibi8222 Před 8 lety

    he is helpful thanks man

  • @sneezygames0215
    @sneezygames0215 Před 3 lety +2

    Thank you this was really helpful and helped me a lot on my science exam.

  • @kasunigunasekara7514
    @kasunigunasekara7514 Před 2 lety

    Thank you sir.!

  • @ladymikaela7015
    @ladymikaela7015 Před 7 lety +1

    sir. when will i use cos or sin? im confused. and what angle will i use.?

  • @gpsharma9669
    @gpsharma9669 Před 2 lety

    Excellent.

  • @yaxiu3799
    @yaxiu3799 Před 4 lety

    Best tutor in the world.

  • @KarnPoipoi
    @KarnPoipoi Před 11 lety

    THANK YOU! YOU ARE AWESOME. cheers

  • @neerajmodi6794
    @neerajmodi6794 Před rokem +1

    You cleared my doubt, Thanks teacher 👍

  • @rabalac99
    @rabalac99 Před 12 lety

    i understand the linear aspect its just the parallelogram law is the problem...oh lol you started talking about it now thank you :)

  • @mariapopova1763
    @mariapopova1763 Před 5 lety

    Thank you so much !

  • @Ryan-bk7kx
    @Ryan-bk7kx Před 8 lety +2

    Really helpful, helped me in 6th grade science assessment :D

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 8 lety +3

      +Ryan Mitchell Sounds like I am reaching to outside of the UK

    • @Sam-tu9un
      @Sam-tu9un Před 3 lety +1

      It helped in my 2nd grade math

  • @madblox252
    @madblox252 Před 7 měsíci

    to find RN can I also use pythagoras theorem? I got 10N.

  • @paulburgess1092
    @paulburgess1092 Před 7 lety

    how did you work out the 2nd one

  • @jess_ym523
    @jess_ym523 Před 8 lety +3

    Thank you so much, I finally understand it!

  • @dolphinpower1107
    @dolphinpower1107 Před 3 lety +1

    But how do you calculate the direction of a resultant force.

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 3 lety +1

      Find the angle to the horizontal of the resultant force (generally use SOHCAHTOA).

  • @reinvillesibayan7626
    @reinvillesibayan7626 Před 5 lety

    Sir what software are you using?

  • @anshuiyakarki5922
    @anshuiyakarki5922 Před 3 lety +1

    why did you add 8 while resolving horizontal component and why didn't you add 8 while resolving vertical component?

  • @suhokim0522
    @suhokim0522 Před 4 lety

    Thank you so much

    • @sheetalwalia9637
      @sheetalwalia9637 Před 4 lety

      Wafa Rusli how can we tell in which direction will the force move if Y is greater than x

  • @dumebiuwajeh3423
    @dumebiuwajeh3423 Před 3 lety

    Hi please in my question the body is given a mass of 50kg, how do i determine the acceleration of the body and the angle of inclination of the resultant to each of the vectors.

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 3 lety

      Hi Julius, we don't answer questions that don't relate specifically to the video. Best

  • @sheetalwalia9637
    @sheetalwalia9637 Před 4 lety

    If the forces are in the same side we add them but if they are opposing each other we subtract to get the resultant or net force

  • @KhanhPhamPro
    @KhanhPhamPro Před 5 lety

    thank you

  • @evilmaster2429
    @evilmaster2429 Před 5 lety +4

    James Corden teaching physics

  • @stevenvosotros7228
    @stevenvosotros7228 Před 3 lety

    How about it has a the same newtons?

  • @theultimatemariofan7942
    @theultimatemariofan7942 Před 5 lety +1

    Is this for first or second year a level maths?

    • @Mirsab
      @Mirsab Před 4 lety

      Your choice, one can choose to do m1 in year one or year 2

  • @ytpremium5516
    @ytpremium5516 Před 5 lety

    Obtuse angles?

  • @TheNathanael315
    @TheNathanael315 Před 8 lety

    Why cant you leave the 2 forces in the 3rd example where they are and get the answer, I tried to do the example as I did in the M1 jan 2006 paper (question 4)

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 8 lety +1

      You should be adding vectors to get the resultant. So you must put one vector on the end of the other as I did. If you did it the way you are suggesting then the magnitude and direction would be wrong.

    • @TheNathanael315
      @TheNathanael315 Před 8 lety

      +ExamSolutions That makes sense, thank you.

  • @yasminaosman3296
    @yasminaosman3296 Před 10 lety

    Ok.If forces are vectors, why not just add them up to get the third force in the triangle? I mean, you've applied pythagoras and cosine rule to get the third force instead of just adding up the other 2 vector forces.Why?

  • @TwistarBlink
    @TwistarBlink Před 10 měsíci

    I dont understand the step on the x and y vector diagram

  • @jamezalhusar2628
    @jamezalhusar2628 Před 5 lety

    hope has been restored

  • @maddiejames5066
    @maddiejames5066 Před 3 lety

    king

  • @sing759
    @sing759 Před 2 lety

    i feel like I am watching British version of Ross Geller (Friends) explaining me :)

  • @kylekoren7369
    @kylekoren7369 Před 9 lety +8

    Ok so finding the magnitude of the vector was very helpful thank you , but what about the angle?

    • @himani8927
      @himani8927 Před 7 lety

      yes, I'd like to know how to find the direction as well!

    • @tgdhsuk3589
      @tgdhsuk3589 Před 7 lety

      i dont get wht u mean, think of a question, because they cant give two forces and no angle, its either all forces or hints in the question... I think otherwise I'm screwed

  • @s4svisualization954
    @s4svisualization954 Před 5 lety

    Thank u

  • @debasishmajhi687
    @debasishmajhi687 Před 8 lety

    cosin rule is batter .....

  • @priya200328
    @priya200328 Před 5 lety

    3:28 how is that a straight line??

  • @Eyebroooo
    @Eyebroooo Před 3 lety

    is he alive?

  • @lucasatilmis4380
    @lucasatilmis4380 Před 5 lety

    So many useless videos which aren’t useful now

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 5 lety

      Oh well, I am pleased to read that you clearly won't be looking at my videos anymore and making remarks like this for something you get for free.

  • @yasminaosman3296
    @yasminaosman3296 Před 10 lety

    Ok.If forces are vectors, why not just add them up to get the third force in the triangle? I mean, you've applied pythagoras and cosine rule to get the third force instead of just adding up the other 2 vector forces.Why?

    • @ExamSolutions_Maths
      @ExamSolutions_Maths  Před 10 lety +1

      I am showing various methods. If I did do a vector method then i will have to resolve to get the components then to get the magnitude use Pythag anyway, so what is the difference? The methods are still the same.