Elliptical Orbits and the Conservation of Angular Momentum

[@henrygerber3928]

Hello lasseviren1, I just wanted to thank you for all your videos. The reason your videos are so helpful is that they are well taught as well as very organized. You really are helping me and many other teens better understand the physical laws of the world around them and I thank you for that!

[@TheMajorpickle01]

Thank you for this. Our lecturer explained it in terms of energy and i had no idea whatsoever what was going on. This is a much better way!

[@gopalasthana502]

I'm so grateful to you...... Now my concept is crystal clear....KUDOS MAN❤️❤️

[@Keiran19]

I know this video is old but it helped me a ton, so thanks a lot!!!!

[@cherriesrule975]

Thanks so much, this really explained a lot!

[@yashvats9703]

thx you very much as you explained a great topic in a very easy method.keep it up, please!

[@lasseviren1]

Both the magnitude and the direction of the angular momentum of the satellite remain constant. This is because there is no net torque on the satellite since torque = r x F and r and F are always anti-parallel (opposite directions). The momentum of the satellite changes but not the angular momentum. To get the direction of L you could use the right-hand rule.

[@Yrgen2]

Thank you. I was stuck for 3 days solving a problem

[@jasonbarr819]

This is such an amazing video, so glad I found it

[@user-nt4nm4fb3u]

thank you very much for clearing my doubt!!!!

[@alexrosellverges8345]

Cool and clear video, thank you!

[@TheRealJoshuaYang]

Cleared my doubts. thank you

[@fathimaraihana2899]

Very good explanation..thnku

[@KilometerKingdom]

A satellite is moving in an elliptical path around the earth. The mass of the satellite is very small compared to the earth. Can i say that the angular momentum of the satellite about the center of the earth changes in direction but the magnitude remains constant?

[@22Tech]

awesome video thanks!

[@CsrxRacer]

very helpful, no one can dislike

[@easierchutoy7355]

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[@Jessica-hl4mo]

Thank you!

[@surendrakverma555]

Good. Thanks 🙏🙏🙏

[@nibiruresearch]

No matter the formula's you write down, it is absolutely impossible that an eccentric orbit is symmetrical.

[@nome2057]

Thank you.

[@quietwarriors2625]

pretty useful thx

[@iskriii]

Yep, that sounds right

[@syclonusmusic]

hi , when i first learned this with calculus in mind ,it was a astronomy book . the aphelion perihelion the radii , then semi major and semi minor axis , in different book s they used different words to describe the elliptical orbit , the semi major and minor was from the orbital mechanics reading at the time , thanks still watching while im typing .

[@soumyadipghoshal6874]

Thanks

[@batmanbutbetter]

well I don't care if you do care if I know the vocabulary

[@studiousboy644]

This is not a proof. Sorry but I'm not sure how to say it, but I find this as a bad explanation.

[@imashnake_7151]

he didn't say it was a proof?

[@TheAnimammal]

Angular momentum is defined by the radius: L= r x p. So it will change when the radius changes. i.e.: it only appears conserved when there is no torque, provided that there is no change in radius. Angular momentum is not conserved. You are deceiving us.

[@whathehellohmygod]

p=mv and v isn't constant

[@TheAnimammal]

We know that p is conserved so does that mean m changes ?

[@whathehellohmygod]

P is universally conserved but can change for a given object

[@TheAnimammal]

Absolutely. It is a mistaken assumption however that angular momentum is conserved in variable radii systems.

[@whathehellohmygod]

Do you mean if the entire system's radius (Semi major axis i guess) changes, not that distance between orbiting object and the other object changes? I.e. Mars has a different L to Earth (pretending here that m is the same on both), but Earth has constant L (ideally)

[@just1minute440]

Kitna Indian Bande 😂😂😂😂😂😂 is Angrej ko dhekne aa aai hi.kuch samajh nahibaaiga.