Momentum (6 of 16) Inelastic Collisions, An Explanation

Explains inelastic collisions with respect to conservation of momentum and the fact that kinetic energy is not conserved before and after the collision.
In an inelastic collision the objects stick together. Due to deformation of the objects, the release of heat and increased vibrational energy, kinetic energy is not conserved. Momentum is conserved. In a perfectly elastic collision the objects do not stick together, therefore kinetic energy and momentum are both conserved.
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[@imranshah3522]

Excellent

[@stepbystepscience]

Thank you!

[@tsholofeloramushu8373]

Thank you so much.. with love from South Africa🇿🇦

[@stepbystepscience]

You're welcome and warm wishes from Germany!

[@joe2certi]

Thank you sir! I have exams in 4 days and you saved me 🎉

[@stepbystepscience]

Good luck on the exams!

[@TwoCoolScienceChix]

Wow! That was a great explanation! Wow!

[@CDinkle]

11:56 Mind blown, great way to double check (would be a great way to solve, but we all know that the Profs want to see the work).

[@stepbystepscience]

Thanks again.

[@cansutamer5887]

I finally understood this, thanks!!

[@stepbystepscience]

Glad it helped!

[@rezwan6241]

G.R.E.A.T EXPLANATIONS; THANKS, A LOT.

[@stepbystepscience]

Thanks again.

[@ivanvalverde7018]

Thank you!

[@stepbystepscience]

Welcome!

[@faizulmirza2003]

Great video sir 🙌 One little confusion that I have.. - Consider a case where A ball , made of Mud (soil) is released from some height from A concrete floor , it would eventually fall and get deformed and stuck in the floor without bouncing. Sir How is momentum conserved in this case as before collision the system had some momentum(ball was moving) but after collision ball came to rest so momentum of system might be zero .

[@stepbystepscience]

Energy/momentum are conserved because when the ball hits the floor it is deformed, there is probably some sound created and also some of the energy is converted to heat from friction.

[@faizulmirza2003]

@@stepbystepscience thank you sir for the reply 😃 But sir please clear the confusion regarding the momentum conservation (I might have some conceptual error )

[@noonesherem8782]

6:00 how do you know that the two objects don't rebound off of each other and travel in opposite directions at the same speed they collided with? This would then mean that KE would be conserved right?

[@stepbystepscience]

Because these are inelastic collisions, if they bounce off of each other it would be elastic.

[@noonesherem8782]

@@stepbystepscience okay thanks for your reply. But how can you determine/ predict before the collision happens whether it will be elastic or inelastic. It seems that we can only know whether the collision is inelastic or not after the collision has occured?

[@mukeshpatel3795]

Great explanation! !!😊😊😊😊

[@stepbystepscience]

Thank you

[@noble_experiment]

Hi, love your vids thank you so much! Just watched your Coulomb videos and they're great.. i do have one question, most of your explanation was based on triangles.. what if i come across three charges in a plane? on the y axis and the x axis?

[@stepbystepscience]

That would be some form of a triangle, three point on a plane. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@noble_experiment]

Step-by-Step Science thank you so much. I'm starting physics this year so please feel free to block me whenever my spamming with so many questions thing gets a tad too much.

[@dido1803]

Great explanations!!

[@stepbystepscience]

Thank you very much!

[@Shackled]

excellent work

[@stepbystepscience]

Many thanks for the comment.

[@aighttie4877]

why are rear end collisions less dangerous than front end collisions, I need this quickly thankyou

[@DraftScience]

a response video: kzbin.info/www/bejne/pau8Xqpvo5uVeqc