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Physics 8 Work, Energy, and Power (6 of 37) Inclined Plane (Frictionless)

Frames Physics 8 Work, Energy, and Power (6 of 37) Inclined Plane (Frictionless)

Description Physics 8 Work, Energy, and Power (6 of 37) Inclined Plane (Frictionless)

Comments Physics 8 Work, Energy, and Power (6 of 37) Inclined Plane (Frictionless)

Thanku respected sir, love and respect from india Comment from : Srii Abhigyan

he sounds like gru Comment from : fungimungimoo

sir, i would just like to know why are we not going to take into consideration the directions, where one would choose a certain direction to be positive, preferably upwards, since it's the original motion of the block, and in that case downwards would be negative and that would make the gravitational acceleration, g, to be a -98m/s^2 Comment from : Nkosinathi Ntuli

Are you math or physics teacher 😲😲😳😳😳😳 Comment from : Soreti Murtesa

Good day Sir! May I know why you used cosine theta in the y-axis? and sine theta in the x-axis? I Comment from : Christine Casul

Why you use costeteah 1 it is 30 degree? Comment from : Gemechu Kebede

There is no kinetic energy in a moving mass there is force Mv squared , kinetic energy is the energy of consistent work from a consistent force regards Graham Flowers Comment from : graham flowers

I have a question! why didn't you use the net force while calculating the work done You used the applied force (100N) which didn't include into consideration the component of weight that opposes the applied force ie mgsin(theta) Comment from : Kidus Eyob

😊 Comment from : fizixx

May I know why the work done by the gravity (mg sin @)is not put Into account,, sorry for the typos Comment from : Nurr Izzati binti Mohammad Zambree

He has good problems but this question was not worded well In fact it wasn't worded at all Comment from : mike jackson

If we used the net force to calculate the work we would not have the same kinetic energy in both cases And that's confusing me a lot Comment from : Daniel Cordeiro

Thanks Comment from : Shaikh Bakhas

Sir, without a doubt; this was the most helpful video i've ever watched on this subject ! Thanks for illuminating our path, sincerely from Turkey Comment from : B

There's something I don't understand Can someone explain why the work done is force × distance and not net force × distance Why didn't we remove mgsinetheta from 100N before calculating the workdone Comment from : Christabel Nneoma

Hi! Thank you and i love your videos! So much actually I have a question, for the net work dont we need to take in consideration work done by the gravity? Comment from : Hazim Amery

THANK YOU SO MUCH SIR I understood it perfectly Comment from : Ima Jahan

A very good mental arithmetic! Comment from : Tuk Tak

Awesome stuff! I really enjoyed this video on bWork, Energy, and Power/b ! Keep up the amazing work! Comment from : Immanuel Garcia

and the work done by resultant force is is equals to change in kinetic energy Comment from : kunal kumar

Very impressive sir!! But sir, please I need you to recommend a very good physics text book where I can see and solve questions like the ones you usually solve in your videos Especially for mechanics Comment from : PHYSICS AND MATHEMATICS FOREVER!!

this was of 20 lessons, now of 37, but good lessons Comment from : Antonio Mantovani

I'm learning physics when I'm only 9 Comment from : Joanne Ciupak

thank you sir ur explaination is very2 clear i finally understand the logic of it now Comment from : Jaelly

is 100N force that is applied is a non conservative force? Comment from : jiya varma

Hi sir sorry I have a question If you have only one force on the object when you draw a free-body diagram and the acceleration is zero, how do I write the equation? Comment from : HistoryIsTheBest

Sir please keep making videos Comment from : Kush Raj

Wow You just made it look easy! Thank you, Sir! ☺️ Comment from : Ingrid Solaina

Find a general solution between two equation so we got same number in much easier ways???? Comment from : anil sharma

Use enligted black board so we see it clearly? Comment from : anil sharma

I put myself with 8 empty bottle of 20 liters in water and floating easily with my 63 kg weight brHow much density this system possessesbr????? Comment from : anil sharma

i had been searching through books for explaination about why mgh in incline planes have to be distance times sin theta for almost half an hour! Glad that i came across your video, you explained it very well!! Thank you!! Comment from : lee

Sir what is the useful work done input and out put to calculate efficiency Comment from : Faiza Sikandar

I’ve been to university This is better Comment from : Daniel Best

omg i just realised This man goes through the trouble of printing out and sticking on the writing that is below the whiteboard This man is amazing! Comment from : PHOTON

how did you determine the direction mg is pulled down ( right or left) Comment from : Sarah Lolo

Thank you so much! Comment from : Ahmed Al-Ebrashy

Is angle of inclined always 30 Comment from : Season

Shouldn't we have to calculate Fnet first? As far as I know we have to substract mgcos30 before we find W? Comment from : Reduil dCarpe

What is the definition of work? I understand the equation but I'm just trying to think about what it means conceptialy Comment from : Meow

thank you professor! Comment from : asaad alalawi

I am indian and i like your teaching style👍 Comment from : Abhishek Samyal

if I may ask Sir, through your calculations, Work done by Fg was not considered though, we had (vertical displacement ) that part confuses me Comment from : Pets world

I’ve begun love physics because of you thank you so much brGod bless you ❤️ Comment from : Fatima Mahmoud

neat Comment from : jed

I wish I was you 😭 Comment from : Tu Madre

Is there any work done against the component of the weight Comment from : saima arshad

This guys an animal Comment from : Terrance Figgs

Great explanations! Comment from : Ronjay Zapanta

Shouldn't the work done include the force that is applied & the weight's component that is parallel to the incline? Comment from : Thabo Joy Makhudu

I don't understand why it works The potential energy and kinetic energy have different directions so I don't understand why the equation works Comment from : Your Waifu Sucks

THANK YOU SO MUCH! I was totally confused as to how acceleration could be calculated in these problems! You are awesome! Comment from : PhotoBomb2000

Why are you finding the Fnet? And why is it 100N - mgSin(theta)? Comment from : Jummy Fal

i understand you better than my teacher lol Comment from : David Vela

thank you so much! Comment from : MovieRecaps - Official

how to pronounce your name? Comment from : herold henry

thanks a lot man!!!! Comment from : Dragos Andrei Papuc

This is why in class lectures are useless to me I can go on the internet and find a clear explanation and watch it 100 times Anything confuses me I don't have to interupt the class Comment from : MisterBinx

When finding work done, Shouldnt F be 100N minus the component of the weight acting down the slope Comment from : Saimakhan Khan

Where is the power video relating to this? Comment from : G Erbil

great teacher Comment from : Parisa Aoladi

What is the angle you are taking while finding the components of mg? Why is it 30? Comment from : adiena arshad

I dont get 4:58whats with sine theta? Comment from : Katyusha H Beilschmidt

mass 15000 kg brX 500 mbrtheta 25•brResistance 800N(constant)brwork done by driving force???? Comment from : H M QUAMRAN HASAN

cos30 is not zero Comment from : DOGBEY GODWIN

I dont understand why we calculate friction force to calculate net force?Is not it frictionless?And why we calculate it like this?Why dont we use Nμ ?? Thank you so much Comment from : Mihriban k

You speak too fast Comment from : VirtualRonnie

what if F wasn't given? but U was given? Comment from : people like gamers

at the very beginning why is W not F*d cos 30isn't the angle between them 30?thank you Comment from : Kim Taeyeon is my everything

This guy is a beast Comment from : Jimi Hendrix

Can someone explain the part where he finds the net force on the block by dividing it into its components? I think it is around 4:25 Comment from : Ishan Dixit

Very helpful, thank you for taking the time to make these Comment from : Travis L

I lost him after 5:30… Comment from : Francisco Pina

Thanks a lot for yuor helpful lectures It really helped mee Comment from : Temurbek Mukhammadiev

I wish you were my teacher Comment from : David Guirgus

One of the best professors ever! I've just watched a few videos and I can't believe just how much I understand nowThings are not fuzzy! God bless you! Comment from : Jeremy Mwangelwa

greetings, dear teacher i hope you are alrightbrteacher, i have a question, when you are calculating the net force, why is the algebraic sign of the component of the force [m*g*sin(theta)] negative?brthank you dear teacher Comment from : Johann Iral

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