Grade 12 Physical Science: Newton's Laws_4 - Forces on an inclined plane

[@thatothamae2314]

Your explaining is incredibly helpful. I have finally understood Newton’s Laws because of you. Thank you

[@MlungisiNkosi]

You're welcome 🤗

[@preetbains2860]

Your one of the few people that actually knows how to teach. Thank you so much

[@MlungisiNkosi]

Thank you sooooo so much 😊

[@bee-_-4164]

I hated physics, I completed my matric in 2017 with low marks in physics and maths. I decided to upgrade my marks this year. This channel has been so helpful .yohh I'm so grateful. You're the teacher i needed 5 years ago . I absolutely love physics now all thanks to you I have a better understanding of the subject.

[@MlungisiNkosi]

Who is chopping onions 😭 Thank you so much for your great comment. I'm glad I could assist

[@theemajesty]

Hey...how did it go?

[@TKGaming7892]

M

[@noluthandokarabo2929]

Uncle Mlungisi please try and check the last question wasn't fg// supposed to be 29.6 instead of 9.6.... Thank you for making physical sciences easier for me❤️

[@MlungisiNkosi]

Thank you for feedback

[@dumisaneshabalala1174]

I think he forgot to make it negative that why he got 9.6 but I also got 29.6

[@tsireletsolentsa7883]

YOU ARE INCREDIBLY. 4.2 MADE A MISTAKE WHEN CALCULATING TENSION ,ADDED 10 INSTEAD OF SUBRACTING IT. THANK YOU,KEEP UP THE GOODWORK

[@MlungisiNkosi]

Thank you so so much 🤗

[@basetsanamoraka1332]

If i don't teach physics like you after i finish my degree then I don't know, i'm writing my physics module next week and i cant wait to apply the knowledge i've got from your videos. thank you

[@MlungisiNkosi]

I look forward to see you coming to add your contribution into this field

[@GibsonMogale]

Physics simplified 👏👏🙌🙌 I've always struggled with this topic but now I see the light💡😁😁.......thank you so much once again

[@MlungisiNkosi]

I love it ❤️

[@sabataradebe5385]

AFTER SO MANY YEARS OF TRYING TO UNDERSTAND THESE LAWS ,LITERALLY I WISH MY COUSIN COULD HAVE RECOMMENDED THIS CHANNEL LONG AGO ,I WOULD HAVE PROBABLY GRADUATED LONG AGO AND NOT UPGRADING .BUT REGARDLESS,THANK YOU SIR !!!

[@MlungisiNkosi]

I’m glad you finally got to the right place 🤗

[@liyemakolisi]

Sir on the last example you added 10 instead of subtracting. - 4x9.8sin30 - 10 = 29.6 not 9.6

[@MlungisiNkosi]

Ijooooo... I'll look into it, thank you. I think it may happen that I will make an error here and there. The best thing is to ensure your understanding. 😊

[@anesipomana4753]

Yhoo I thought I was wrong, but when I listened carefully you punched in +4 instead of -4 glad someone picked it up too. Thanks @pink justice

[@sealamashishi2559]

You are honestly changing our lives and saying our future

[@MlungisiNkosi]

Thank you 🤗

[@dianagalx]

I don't know how you do it sir but you make physics so easy .Since grade 11 I use to struggle with the subject. Thanks for the help. Never thought I'll say this but now it seems like I'm loving physics 😁

[@MlungisiNkosi]

Wow this I’m glad to hear… You’re going to kill it in the final exam

[@moneuamber5948]

Wow you are so smart ,Thankyou so much for this video . Not many intellectuals love helping others . God bless you

[@MlungisiNkosi]

It is my sincerest pleasure… 😊

[@mvuselelosngwenya5192]

You are so brillint, keep up the good work Sir. May you be blessed and continue serving the nation.

[@MlungisiNkosi]

Thank you so much 😊

[@moyahabomelita4739]

You really are the best sir 🙏 I'm preparing for the exam on Friday and all i can say is I'm sure I'll nail it all because of you thank you so much🙏🙏

[@MlungisiNkosi]

I’m happy to make you feel this confident

[@thatonyakale375]

I finally understand Newton's 2nd law. THANK YOU Sir keep up the good work

[@MlungisiNkosi]

You’re more than welcome

[@itsjustnomusa5191]

The series of videos on Newton’s laws’ was really helpful, thank you. May you please do Electric circuits next 🙏🏽

[@MlungisiNkosi]

I'll finish Organic Chemistry and immediately start with Electric circuits

[@itsjustnomusa5191]

@@MlungisiNkosi I’d really appreciate that 😁🙏🏽

[@vanwykgift2894]

Awesome series of videos sir ,This was extensively helpful. #GBCfam

[@MlungisiNkosi]

Thank you family... I'm happy to see a member of the family taking advantage of this platform. This is awesome...

[@wxvambient]

Thank you sir, you made a mistake at the last exam question when working out T. You forgot to insert the negative sign at the Fgll for the second formula

[@MlungisiNkosi]

Thank you for pointing it out...

[@MlungisiNkosi]

@Hector Thokozani Radebe thank you for your understanding 🤗

[@tselamashinini1450]

I'm finally getting full marks , thank you sir 🙏

[@MlungisiNkosi]

I’m loving this comment ❤️

[@PetiteGirlChronicles]

Good evening Sir, please help me understand where we got the fg || = mg sin (on part 25:46).. i dont understand how we got the sin.. please kindly assist

[@MlungisiNkosi]

Perhaps for now you should worry less about that and more about the application of it

[@PetiteGirlChronicles]

Thank you Sir for your feedback 🙏

[@zanelenkosi3442]

❤ thank you so much .. finally i understand newtons

[@MlungisiNkosi]

It’s a pleasure

[@azasouthafricanyoutubers5654]

Sir at 32:27: isn't it supplied to be fg perpendicular =m×g×sin30 and not cos??

[@azasouthafricanyoutubers5654]

Supposed *

[@MlungisiNkosi]

No… it’s sin

[@dulminipinipa1175]

Thank u very much sir. I understood the whole lesson smoothly and softly .

[@MlungisiNkosi]

Lol @ smoothly and softly 😂. I'm glad I could assist

[@BaneleMncwango-nr7jo]

Thank you Mr You have a good heart ♥

[@liyemakolisi]

I wish you would make varsity physics content. I’m back here just revising and I honestly miss knowing I can watch your videos to do well in physics

[@MlungisiNkosi]

With time, I will… I’m grateful to have you stick around.

[@kayymudau6878]

Thank you for all these videos sir. These are really helping us.❤🙏

[@MlungisiNkosi]

You’re welcome ☺️

[@thatomosala9048]

what happens now when F is removed (from the first example) and you have to calculate the new acceleration, what happens to the signs of fk and fg(//)? This was November 2017, question 2.1.3

[@MlungisiNkosi]

Great question... Fg// still retains its direction because It's a conservative force but fk would change since it assumes its direction from the motion of the object (friction is a non-conservative force)

[@thatomosala9048]

@@MlungisiNkosi thank you sir🙏

[@MlungisiNkosi]

@@thatomosala9048 you're most welcome

[@olebogengabram4278]

your last calculation on tension you made a mistake on x components on 4kg block. was supposed to be T-19,6-10=4a. yours its T-9,6=4a

[@MlungisiNkosi]

Forgiveness please 🙏🏾

[@simphiwemabuza2503]

Sirrrr or anyone plsss can i ask when calculating the frictional force you include cos and sin makwenze njani on that formula .

[@MlungisiNkosi]

Please watch from video 1 please 🙏🏾

[@czeenfootballtv374]

Mlu hope you good. 9.6 wasn't suppose to be 29,6??

[@MlungisiNkosi]

Yes I agree. I think I made mistake in the calculation

[@karaboraolane4334]

Thnx 👏

[@livashanpillay5311]

33:37 "F"=178.92N

[@MlungisiNkosi]

Thank you

[@RobertRamudzuli]

Now Newton's law sound easier to me ❤

[@MlungisiNkosi]

I’m glad it does

[@Sinandumo]

Sir on the second example we did I found the frictional force through saying because the system is moving at a constant speed the frictional force is equal to fg parallel, are they going to deduct marks

[@MlungisiNkosi]

For anything that you add that is incorrect, marks are deducted…

[@jessicamokhethi2374]

Can I ask something? Regarding the issue with constant speed /acceleration,, I'd like to know if even if they didn't specify that the speed was constant do we still assume that it is regardless?

[@MlungisiNkosi]

Not at all… You have to be told that it is.

[@mzansi-s]

Hi sir...I have a question.When you calculate tension,after you have equation 1 and equation 2,can I solve them simultaneously by saying "equation 1 + equation 2" Like for example: Equation 1 + Equation 2 32,64 - T + T - 29.6 = 1a + 4a ?

[@MlungisiNkosi]

Yes you can but you do realise that the T’s cancel out, right? Then you’ll find “a”

[@mzansi-s]

@@MlungisiNkosi thank you🙏

[@sweetmadam]

The direction of the fg// is CONSTANTLY to the left?

[@MlungisiNkosi]

No it is constantly down the incline

[@HappyMaposa-professor]

Is the coefficient of friction always given

[@confidencelebogang6472]

So sir always in the calculations when were looking for fg|| we use Sin?

[@MlungisiNkosi]

Yebooooo 😊

[@azasouthafricanyoutubers5654]

Isn't it supposed to be cos?

[@sweetmadam]

@@azasouthafricanyoutubers5654 no

[@sweetmadam]

@@azasouthafricanyoutubers5654 you use cos when calculating the weight.

[@ngeni_za]

Good day Sir , hope you good. Thank you so much for the lessons ❤✊, can you please provide us with a lesson on Newton law of universal gravitation

[@MlungisiNkosi]

Oh my... I didn't realise that I didn't cover that section yet. Noted... Will do.

[@HappyMaposa-professor]

Sir I don't know if am the one who made a mistake on finding the components of the weight force please clarify

[@HappyMaposa-professor]

Specifically on the last question

[@cphezmconter5537]

Thank you sir...can you please do rate of reaction

[@MlungisiNkosi]

I will be on it this very week 😊

[@kgagudimalomane2997]

Mlu.. I think on the last question u made mistake, I got tension of = 32.03 N U substituted right but calculations went wrong, please check 😊

[@MlungisiNkosi]

Ijoooooo... It happens to the best of us hey. Please forgive

[@kgagudimalomane2997]

It's all thanks to u 4, at 1st b4 I watched ur video's I was clueless and now I see way much better 🤝🙏

[@MlungisiNkosi]

@@kgagudimalomane2997 thank you for allowing me the opportunity to make a difference 😊

[@liyemakolisi]

Me too

[@karaboraolane4334]

Good yess I also agree it was suppose to be 160.16over 5 then it's 32.03👏 I will make sure I follow you ❤

[@neophadishi424]

Thank you, this really helped me 🔥🙏

[@MlungisiNkosi]

You're welcome

[@lulubikitsha2870]

Thank you so much sir, please do chemical equilibrium and physical properties

[@MlungisiNkosi]

Chemical equilibrium is covered partly. Please look for it.

[@lulubikitsha2870]

@@MlungisiNkosi okay thank you

[@LisakhanyaNyamza-c8k]

hello sir , since N=FGy , FGy=mgsin30 , therefore making N=20x9.8sin30

[@yung347]

Thank u appreciate your work

[@buyinyawo5522]

You are incredible sir

[@MlungisiNkosi]

Thank you so much

[@HappyMaposa-professor]

Sir nkosi is awesome just like the name nkosi his the saviour from the raffle of phy 😂😂😂

[@winniemahlangu8860]

Thank u sir been productive.

[@MlungisiNkosi]

My pleasure 😊

[@winkylufefezuma4424]

sir can you please do the may-june 2019 question 2 newtons laws(lawn mower question) NSC.... I'm having some trouble with 2.1.4

[@MlungisiNkosi]

We will look into it... 😊

[@winkylufefezuma4424]

@@MlungisiNkosi Thank you Sir...yooh some learners be so blessed imagine having such a teacher as your school teacher...bathung hle .....you have helped thousands of learners in just this year alone...may God bless you abundantly Sir

[@MlungisiNkosi]

@@winkylufefezuma4424 It's my pleasure... Let's help thousands more.

[@ZintleHoshe-tl7om]

sir u made a mistake, T= 32.03 N -4(9.8sin30) -10 = 29.6 and not 9.6 hence, when u further find the value of T, you're supposed to get 32.03 N

[@mminiramaloba206]

u are the best sir

[@MlungisiNkosi]

You are most welcome

[@nonselelogamede7802]

Thank you sir 👏👌

[@MlungisiNkosi]

You're welcome Nonsè...

[@khanyatadi]

thank you for this. 🤞🏽

[@MlungisiNkosi]

You are most welcome

[@giftcrazewell167]

Thank you Sir 👑

[@MlungisiNkosi]

You're welcome

[@tselamashinini1450]

Thank you Sir 😊

[@MlungisiNkosi]

You’re welcome

[@vinoliachristoffels7964]

Thank you sir please upload more

[@MlungisiNkosi]

I will try my best

[@sealamashishi2559]

Thank you 💕

[@MlungisiNkosi]

You're welcome

[@thatomosala9048]

extremely grateful for the videos🖤🔥 may you please share problem type questions based on this topic

[@MlungisiNkosi]

Thank you... I will post problem question on each topic as we prepare for prelims

[@thatomosala9048]

@@MlungisiNkosi Thank you very much🙏

[@MlungisiNkosi]

@@thatomosala9048 you're most welcome 😊

[@djtonict6629]

God bless you

[@MlungisiNkosi]

Thank you so much 🤗

[@Addicted_Gamer101]

Mlungisi uya lungisa

[@MlungisiNkosi]

Ngiyabonga ukuthi kuyalunga… Kancane kancane sowuyavela

[@nangosiyephu339]

Thank you so much this will help🎊❤️❤️🎊🎊

[@MlungisiNkosi]

The pleasure is mine

[@mphommotla5630]

thank you 🙏🏾🙏🏾

[@MlungisiNkosi]

You're most welcome Mpho

[@makkadeshkombase5956]

Thank you so much for this Sir ❤❤❤❤❤❤❤

[@zanelenkosi3442]

❤ thank you so much .. finally i understand newtons