Potential energy and gravity

[@Jessica-hl4mo]

watched this 2 years ago when i started physics, finally followed along through the entire thing two years later! i call that growth

[@yoprofmatt]

It only took two years to finish watching this? Noice. Cheers, Dr. A

[@a.s.physicist]

I am a physics majoring 1st year student...and I'm trying to clear my every concept...you are the one who is helping very well

[@yasminnavesgeurtsen364]

You're explanations are straight to the point, no time wasted! And very easy to understand. Thank you!!

[@yoprofmatt]

You're welcome. Thanks for watching. Cheers, Dr. A

[@frankdimeglio8216]

I tower over the weasel Einstein. The maria occupy one third of the visible NEAR side of WHAT IS THE MOON. This IS fundamentally related to the surface gravity of what is THE MOON. Attention: The rotation of what is the Moon matches the revolution. Now, consider the gravity of THE SUN !!! By Frank Martin DiMeglio

[@rashmideka1522]

Sir you're simply awesome, your explanation of the concepts are superb too!!

[@TheScorpionIntuitive]

found a great teacher here to explain in a way that is easy to innerstand !

[@jeremycuster8025]

I sure wish you were teaching physics at my school! You do a great job of explaining the concepts and how the equations are derived. Thank you!

[@yoprofmatt]

+Jeremy Custer Jeremy, thanks for the note. Sorry you're not happy with your instructors, but very glad to be of help. Cheers, Dr. A

[@amirazammit6972]

@Harvey Forrest me too

[@conornoel9149]

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[@travisdeclan1701]

@Conor Noel instablaster ;)

[@conornoel9149]

@Travis Declan thanks so much for your reply. I got to the site on google and im waiting for the hacking stuff now. Looks like it's gonna take a while so I will reply here later with my results.

[@steffenleo5997]

Thanks Prof Anderson for these great explained topic... 👍👍

[@siddhantjadhav7570]

Such a simplification of concept of Work and Potential Energy.. Thank you very much sir..

[@yoprofmatt]

No problem. You are welcome. Cheers, Dr. A

[@linatewala9471]

Thank you! You make everything just easier to understand.

[@willwicky9052]

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[@ibrahimnizamani4958]

I don't get, how you took r(initial) approaches to infinity. Can you elaborate it abit please?

[@IsmailHossain-x3k]

I have a question. If you were to set r intitial to infinity, that means we are applying an external force to the body opposite to the direction of The conservative force. The body moves from infinity to r final(within the field of The Mass M). So, we are doing a negative work here. But earlier you took the angle for dot product 0 degree. Shouldn't it be 180? 5:43

[@chahkuneng6299]

Much thank for your influence explanation that you made.

[@shadabimam8222]

Not able to concentrate on this vdo bcz each tym i do my mind goes to his great ability of writing inverse!!!!

[@yoprofmatt]

Hate to burst your bubble, but I'm not writing backwards. Simple horizontal flip of the image: www.learning.glass Cheers, Dr. A

[@alyattalla8520]

lol

[@TeacherNorainikhal]

Why set reference point at infinity not the centre of the earth

[@sushantsingh8700]

A ball placed at a top a hill always wanted to go downwards direction as it has potential energy at top of hill and realises it and it rolls down as in motion uses kinetic energy. But what that the place where the Object (ball) assume that it is in the rest position is not at the rest it have to go more downward it is in a false vacuum, what will happen then..

[@tianhanipah9783]

Best ✨💯

[@mhakash8967]

thank you sir...take love from bangladesh🇧🇩

[@yoprofmatt]

Hello Bangladesh! I take your love and send it back twice over. Great to meet another Fanderson™ Cheers, Dr. A

[@sushantsingh8700]

Honourable Sir, I Have a question, what about a object placed at rest, does it have potential energy (it has no other contact.) A student from India... Thanks

[@samialsharari4771]

How come we reached to potential energy from integrating the work?

[@Propdesk_Trader]

Do you have to learn to write backwards to use that board?

[@ImranKhan-gw5qv]

Sir are you alive?I have seen it after 10 years and successfully understanded it

[@ashleyvince7]

How do you write it inverse! ?

[@TheBigBanggggg]

www.learning.glass

[@mytech6779]

Just flip the video

[@chiranrajamanthree7788]

🔥

[@roshan0405]

Thanks Deadpool ❤

[@sparshgupta4300]

How they make these types of vdo

[@fatihzengin8126]

You are amazing.Thanks to you ı love physics.Thank you :)

[@aspirants2280]

Sir please upload a video on acceleration due to the gravity

[@yoprofmatt]

Himanshu, Working on new ones soon. You might also like my new website: www.universityphysics.education Cheers, Dr. A

[@syedumamah5078]

If we dont lift block it still has potential energy, where does this potential enegy come from since we havent given any external force to block and we know internal forces usually balance and they are not able to do any work?

[@yoprofmatt]

Syed Umamah, Thanks. Not sure exactly what you're asking, though. Join the discussion at my new website: www.universityphysics.education Cheers, Dr. A

[@siddhantjadhav7570]

A small Doubt sir: If the mass of the body is not constant, if it changes due to some non conservative forces, then how to proceed for integration???

[@yoprofmatt]

Interesting question. So perhaps the mass is disintegrating as it moves upward? I suppose then F would be a function of height and the integral gets more complex. I'll have to think about an example for that one. Cheers, Dr. A

[@siddhantjadhav7570]

+Matt Anderson Can we take example of a rocket which took off with a mass M and there is decrease in mass as time passes?? In this case what will be the work done by gravity??

[@Khgxcji]

Best explanation !

[@yoprofmatt]

Thanks! Keep up with the physics. Cheers, Dr. A

[@wolfy9979]

What is the difference between this G.M.m/r^2 and -G.M.m/r? Like for what do you use the second one and why?

[@yoprofmatt]

Werewolf, The units reveal all. One is force, the other is energy. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

[@ptyptypty3]

what if we decided to make the center of the EARTH our Zero REFERENCE point?.. then figure out the PE for any mass above the earth and throughout the universe... that is, if we are truly Free to pick any reference point.. I'll have to give this a shot and see.. :) .. as usual, Clear and Concise video Prof Matt... thank you !!

[@moaathkhaled4662]

Thanks ❤

[@danielzlotin6607]

is that a mirror? how does he doing that?

[@yoprofmatt]

daniel zlotin, Not writing backwards (I'm not that talented). The board is called Learning Glass. You can check it out at www.learning.glass Cheers, Dr. A

[@gurushajuneja1946]

Hey ! Dr Matt Anderson wheee do you teach?

[@Taricus]

6:44

[@Andre-ql2ei]

You’re a blessing

[@yoprofmatt]

Andre' _1670, Great comment, thanks. You might also like my new website: www.universityphysics.education Cheers, Dr. A

[@izzeldeenmez4343]

6:33 4:37?

[@daltanionwaves]

Is he writing backwards?

[@sanketpatil8557]

nice

[@boptah7489]

And so. The box has no potential energy at all. . The box is under the force of gravity. so gravity is the force. The box does not store Gravitational force.

[@frankdimeglio8216]

Consistent WITH WHAT IS E=MC2 (AND TIME), “mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY. By Frank Martin DiMeglio

[@mikiutpost]

Its 1 in the aire and 0 in the grund and revers that IF U can Its also b-

[@mikiutpost]

Net force 1/4 ecuels 3/4 in input energy

[@devanshkatheria]

so u seriously writing everything reversed!!!!!

[@yoprofmatt]

Not that talented. A simple "mirror-image" flip of the video does the trick. See it here: www.learning.glass Cheers, Dr. A

[@devanshkatheria]

Matt Anderson Ohk😮...BT u teach it really simpified sir..thank u

[@boptah7489]

There is no evidence that the force of gravity is a function of Mass only. . So the gravitational force formula is moot.

[@tanialu7499]

Has anyone ever told you that you look like Doctor Strange?

[@shrekssexydad7087]

My cousin sent this to me and i’m 13 i’m too dumb for this- 👁👄👁

[@anchovybushwack472]

I'm trying real hard to focus, but the noise of that goddamn marker