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Professor Organic Chemistry Tutor, thank you for a basic Introduction/understanding of Conservative and Nonconservative Forces in Applied/Engineering Physics. The examples really test my knowledge of Conservative and Nonconservative Forces in old fashion Physics. This is an error free video/lecture on RUclips TV with the Organic Chemistry Tutor.
I found the answer for the first question in a different way at pt A PE=mgh and KE=0 there fore (PE+KE)at pt A=(PE+KE)at pt B mg(100m)+o=mg(30m)+1/2mv^2 mg100m-mg30m=1/2mv^2 mg(100m-30m)=1/2mv^2 divide both sides by m g(70m)=1/2v^2 rearrange the equation square root (2g(70m))=v square root (1372)=v v=37.04 for all of u physics nerds watching this video
as you probably know the friction slows down the object. so the object would lose its energy which means that the work done on the object must be negative. kinetic energy tells the work that can be done by an object. he just wrote random numbers since he didnt calculate anything.
how about thermal energy? I read on halliday page 217 it says Wnet = ΔEmec + ΔEth I am wondering that ΔEth = |Wnc| so does it mean Wnet = ΔEmec + Wnc thus ΔEmec = Wnc, Wnet = Wnc + Wnc Im confused
For me, it has been "Chemistry 1 and 2", "Biology 1"(He doesn't really have anything on Biology 2 sadly), and now "Intro to Physics". I suspect he will be getting me through " Physics 1 and 2", "Precalculus", and "Calculus and Analytic Geometry" as well.
This man will go down in history as the guy who taught stem to America. He's so good at describing concept, your brain will have no choice but to understand. THANKS!
There is only one thing that bothers me, why change in potential energy is the negetive of work done by conservative force, and which force are we talking about here I mean the one that is doing the work or the one that is opposing it, like if I lift an object to a height h the work done by me should be positive but the work done by gravity is it the negetive of potential energy gained by object😢😢😢😢
Isn’t the work done by the net force equals to the change of the mechanical energy, or equals to the change of kinetic energy and the weight potential energy?
I don't think we calculate the work done by net force. Work done by different forces are calculated. If they are added together they equal net work. And no matter what, net work always equals change in kinetic energy of the object. So basically, Net work = sum of work done by different forces acting on the object. But understand that Work by each force can be calculated as F*d*cos(theta) so not all forces acting on an object will do work on that object. Also, remember that when calculating work done by conservative force such as gravity, just use the height not the actual displacement because work done by conservative force is independent of the path covered. I hope this helps.
I was told today that a conservative force is always a radial force. That doesn't seem to be right, but I'm wondering if there is a way to classify if more than just that it's non-conservative if it pushes or pulls. Does anyone know of another way to classify conservative and non-conservative forces?
I'm just confused as to why the work done by the friction is greater in path 2 than in path 1. The work done depends on the displacement no? So even if path 2 has a longer distance it still has the same displacement from point A to B in both paths respectively. Wouldn't this cause the work done to be equal in both paths?
you could just say that gravity is conservative because the change in kinetical energy(speed) of the object will be the same at the end no matter where we throw it if the height is the same while with friction, the more time an object spends on the road the work will be higher. like you will step on more rocks that can interrupt your motion and slow you down if you dont go in the straight line
I like to consider a mountain climber.. if he leaves his hotel, climbs a mountain and then return to his hotel, the work he does against gravity is zero because his starting and ending height is the same. Pe = mgh - mgh = 0. His route up the mountain (hard or difficult) doesn't figure anywhere in the maths.
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you are everything I need right now. -from a very emotional student.
I am too
Same
Coming from a very very depressed student
Honestly!
Cant like cuz its 169 likes now☻
@@k1ngsg2478 now 170
You really dropped the mic on this one. The video ended and my jaw was hanging open, you explained this so well!
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Professor Organic Chemistry Tutor, thank you for a basic Introduction/understanding of Conservative and Nonconservative Forces in Applied/Engineering Physics. The examples really test my knowledge of Conservative and Nonconservative Forces in old fashion Physics. This is an error free video/lecture on RUclips TV with the Organic Chemistry Tutor.
Thank you for saving me during this e-learning period.
same here
I have been confused by that topic for so many years thank you I finally understood it!
Really Good !! MAN, You deserves A Million of Hearts.
YOU. ARE. THE .BEST🥺🙏
My LIFE SAVER
thank you. no one ever says applied is nonconservative, they just say friction which misleads me to think applied would be conservative without it.
thank you so much.
I found the answer for the first question in a different way
at pt A PE=mgh and KE=0
there fore (PE+KE)at pt A=(PE+KE)at pt B
mg(100m)+o=mg(30m)+1/2mv^2
mg100m-mg30m=1/2mv^2
mg(100m-30m)=1/2mv^2 divide both sides by m
g(70m)=1/2v^2 rearrange the equation
square root (2g(70m))=v
square root (1372)=v
v=37.04
for all of u physics nerds watching this video
Bhai sahab...thanks bhai
Thank you!Sir!
you are the one and only wallahy
Where are you from sir ji
You teaches good us
You doesn't Indian because you language speed is other country
hi ; is there a video when there is multiple forces acting on the system?
If a body move in parallel path what it's dirction
Legend
Now life makes sense
Thank you
🤯
Can anyone please tell me how the workdone by friction is _300?
as you probably know the friction slows down the object. so the object would lose its energy which means that the work done on the object must be negative. kinetic energy tells the work that can be done by an object. he just wrote random numbers since he didnt calculate anything.
Nepal😍
how about thermal energy? I read on halliday page 217 it says
Wnet = ΔEmec + ΔEth
I am wondering that ΔEth = |Wnc| so does it mean
Wnet = ΔEmec + Wnc
thus ΔEmec = Wnc,
Wnet = Wnc + Wnc
Im confused
.
Tryna study a whole module in one night😭
.
these videos singlehandedly got me through orgo 1 and now they're getting me through physics
For me, it has been "Chemistry 1 and 2", "Biology 1"(He doesn't really have anything on Biology 2 sadly), and now "Intro to Physics". I suspect he will be getting me through " Physics 1 and 2", "Precalculus", and "Calculus and Analytic Geometry" as well.
Triúnn Björn yup, his physics playlist is insane, you practically do not even need to go to class....
@@triunnbjorn3610 which grade?
@@zensingy8466 College
@@triunnbjorn3610 these are in highschool here.
Thank you so much! Without a doupt, you're the best teacher I've ever had. you're the reason I passed all my exams
You explain theories so well. I am visual learner, so your videos help a lot. I love your channel.
ruclips.net/video/rhgwIhB58PA/видео.html
This man will go down in history as the guy who taught stem to America. He's so good at describing concept, your brain will have no choice but to understand. THANKS!
i dont understand shit :(
@@talentedplayzzyou’ll get it it’s all a matter of time. It’s been 4 months since you replied, do you understand now?
May GOD continue to bless you. You are just what we need.
I was hoping you would take it one step further and show example with non conservative force. But good summary though.
i am an egyptian who live in UAE ,we take these topics in grade 11.Really your videos are so helpful
hey pandu
@@marvhartigan3677 hi i do not understand u sir
Nice to meet you! I'm an Indian (living in Mumbai) and we also study these topics in grade/class 11...
بس محد يهتم انت من وين خخ
Thank you so much for explaining this so simply. I can't imagine going through college without your videos.
This is how teaching should be.i highly appreciate ur work.love from India
in about 15 minutes I understood what my prof wasn't able to explain, or maybe just didn't want to, to trip us up on the exam.
This is so good thank you. You make so it easy to learn
You made it simple to understand, thank you very much
sir why did we take negative sign for Wc
Aighr so conservative force = class room to restroom
Non conservative force =restroom to class room
There is only one thing that bothers me, why change in potential energy is the negetive of work done by conservative force, and which force are we talking about here I mean the one that is doing the work or the one that is opposing it, like if I lift an object to a height h the work done by me should be positive but the work done by gravity is it the negetive of potential energy gained by object😢😢😢😢
gotta love when your physics teacher essentially completely ignores this topic
wow thanks from spain!!!
Isn’t the work done by the net force equals to the change of the mechanical energy, or equals to the change of kinetic energy and the weight potential energy?
I don't think we calculate the work done by net force. Work done by different forces are calculated. If they are added together they equal net work. And no matter what, net work always equals change in kinetic energy of the object. So basically, Net work = sum of work done by different forces acting on the object. But understand that Work by each force can be calculated as F*d*cos(theta) so not all forces acting on an object will do work on that object. Also, remember that when calculating work done by conservative force such as gravity, just use the height not the actual displacement because work done by conservative force is independent of the path covered. I hope this helps.
Is normal contact force conservative??
yes
can nonconservative force be used interchangeably with external force?
I was told today that a conservative force is always a radial force. That doesn't seem to be right, but I'm wondering if there is a way to classify if more than just that it's non-conservative if it pushes or pulls. Does anyone know of another way to classify conservative and non-conservative forces?
I'm just confused as to why the work done by the friction is greater in path 2 than in path 1. The work done depends on the displacement no? So even if path 2 has a longer distance it still has the same displacement from point A to B in both paths respectively. Wouldn't this cause the work done to be equal in both paths?
But it has more friction mate. Friction is also an additive force in this case. It adds up and makes it a bit more than work done in path A
issas very naiiss
Was super stressed from midterms and your comment made me laugh. Thank you!
This made me appreciate physics a little more. Thank you !
u must teach universities how to teach
11:00
why is the gravity (9,8) not negative here?
You always make everything easy for me
Really, I was so surprised to get this way of explanations thanks🤗😍
it is more helpful
May God bless you in Jesus Mighty Name Amen 🙏
Greatest explanation ever!!!! On this topic.
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A BIG THANK TO YOU!! ❤
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why the gravity at the end was positive?
i wish you make videos for electric charge and magnetism topics
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watching this before my test
very helpful..thanks!
Why Wc = - ∆PE and not +∆PE?
يزم الله يسعدك
my dad should be paying you for my education not my very useless profs THANK YOU SO MUCH
what is formular for potential energy its mg(hi-hf) or mg(hf-hi)????
mbulelo phakathi second one
Final - initial
Tommorow I have one of the most important exams of my life and god knows i would have failed if not for you.
I wish questions were harder because my course work is four times of this , not joking
Thank you so much .
I am the 101th comment!
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Pls do a video on a conservative systems in classical mechanics with solved examples
But w = fs.. y r u considering distance instead of disp for friction?
I'm sure that you've read it alot of time, but, you are a life saver
The explanation is good but
Voice is low 😇👍
👌👌👌👌
.
👑✨
you could just say that gravity is conservative because the change in kinetical energy(speed) of the object will be the same at the end no matter where we throw it if the height is the same while with friction, the more time an object spends on the road the work will be higher. like you will step on more rocks that can interrupt your motion and slow you down if you dont go in the straight line
I like to consider a mountain climber.. if he leaves his hotel, climbs a mountain and then return to his hotel, the work he does against gravity is zero because his starting and ending height is the same. Pe = mgh - mgh = 0. His route up the mountain (hard or difficult) doesn't figure anywhere in the maths.
Nice video 😃
oh my god so helpful
where r u getting all these equations ? are they given or some
100th comment! you are so awesome! thank you!
❤
love your videos man, i live in south africa
Ryt
7:29
How is the force applied in SHM conservative?
Thank you!😃
You are literally godsent.