4.2 Gravity, Normal Force, and Friction | Intro to Free Body Diagrams | General Physics

[@Priyanshu.G]

first chem, and now physics. thank you

[@ChadsPrep]

Very welcome.

[@K-wv5ki]

Thank you so much for helping me build a foundational understanding of physics with your detailed explanations. You take the time where other teachers don't to explain elementary things -- it is really making the difference for me.

[@ChadsPrep]

You're welcome and Thank You.

[@eddieansumana9109]

My favorite physics tutor ever

[@ChadsPrep]

Happy Studying!

[@DrBMed]

Thank you so much, Chad!!!! After spending 3 hours in a lecture, I did not understand this concept and you saved the day in one hour.

[@ChadsPrep]

You're welcome - Glad the channel helped you!

[@TheRooflesstoofless]

24:49 So if normal force is 490 N and positive as you annotated, does the weight now become negative?

[@JamieAyala-zv8xe]

For the last problem, I was wondering why you kept it at 30 degrees instead of plugging in 330 because the angle was under the horizontal? Thank you for the help!

[@are2515]

Thank you for the video! For the last example, why is the sum of forces in the y-direction equal to 0? Since the force pulls 30 degrees below the x-axis, if the force keeps pulling, doesn't it go further and further in the y-direction? So how can we assume that the sum of forces in the y-direction is 0? Thanks in advance for your help!

[@ChadsPrep]

You're thinking of it more as a torque (turning force) whereas this would be for example pulling with a rope from an angle of 30 degrees that stays constant. Unless stated that 30 degrees stays the same

[@killab5952]

thank you so much Mr.

[@ChadsPrep]

You're welcome

[@shaygame1735]

how do we know that 50N is part of the y component? Is it because the question states that it is "below the horizontal"?

[@ChadsPrep]

Yes, essentially, it points diagonally downwards, which means of the 50N part of that is in the y direction

[@olisano1]

Hi Chad! For the question at 31:00 it said she's accelerating 2m/s2 downward isn't it meant to be -2 in the calculations? If not please why ,thanks for your efforts ❤

[@ChadsPrep]

I talk about this from 30:15 onwards :)

[@olisano1]

​@@ChadsPrep thank you , totally missed it 😂.

[@ChadsPrep]

It happens to the best of us...

[@ReyGotSumCents]

21:23 did we just treat a woman as an object, then? love your videos btw!

[@ChadsPrep]