You can relate this to the derivation of "Relative speed of approach = Relative speed of separation" for elastic collision using conservation of momentum and energy to make the coefficient more understandable.
Awesome, thanks Michael, I was just about to see if you had any videos on this. And a more general thank you for having such a comprehensive syllabus available to us.
It is the same principle as when you throw a snowball against a wall and it sticks (doesn't bounce back). Is the momentum conserved? The answer MUST be YES. So where did that momentum go? It went to the Earth. (Since the Earth is so big, you can't measure it, but that is where it went).
Sir, it would be helpful if you upload a video of bullet fired from gun of certain velocity and then passed through block due to which the block moved a certain amount of distance 'x'. we have to find the coefficient of kinetic friction between the block and surface.
Michel van Biezen sir the video you suggested helped me, but my doubt is that bullet doesn't remains inside the block, it passes out with some velocity and the block moves. We have to find the coefficient of kinetic friction between the block and surface.
That problem is solved in the exact same way. You use conservation of momentum for the collision portion and then you use the conservation of energy for the second portion when the block slides over the surface.
I m from India and there are many books who does not cares about magnitude of rel velocity . So I was confused from two months . I thought e can have + /- sign
You can relate this to the derivation of "Relative speed of approach = Relative speed of separation" for elastic collision using conservation of momentum and energy to make the coefficient more understandable.
Awesome, thanks Michael, I was just about to see if you had any videos on this.
And a more general thank you for having such a comprehensive syllabus available to us.
Thank God this is concise
Glad you found our videos and you find them useful. 🙂
@@MichelvanBiezen Are you German
Originally I am from Belgium. I immigrated to the United States and now live near Los Angeles.
@@MichelvanBiezenThank God for Immigration! I still can't believe some people are trying to stop it...
Excellent Sir
Where does all the momentum from the ball go if the ball doesn't bounce up with the same velocity, and momentum should be conserved?
It is the same principle as when you throw a snowball against a wall and it sticks (doesn't bounce back). Is the momentum conserved? The answer MUST be YES. So where did that momentum go? It went to the Earth. (Since the Earth is so big, you can't measure it, but that is where it went).
@@MichelvanBiezen man, thanks a lot sir, you're a life saver
Hero of physics
Wonderful teaching Sir thank you
Thank you for the comment.
What is COR value for collision between steel and steel?
Why is the initial vel. Before collision 0. Shouldnt it be _/(-2gh) ??
The "0" is for the other surface the ball collides with (the surface of the floor) for which the velocity is zero. (as explained in the video)
Great English teacher.
Amazing sir ..!!?
You described in verry simple manner !!!
Thank you sir!!
Sir, this playlist is awesome...but could you do collisions in a more detailed way?
Look at the following playlists for more videos on momentum: PHYSICS 9.5 INTRODUCTION TO MOMENTUM PHYSICS 10 IMPULSE AND MOMENTUM
Okay sir!!!Thanks!!!
Thanks! Professor .....
Thank you, I loved the video.
Glad you enjoyed it!
Sir, it would be helpful if you upload a video of bullet fired from gun of certain velocity and then passed through block due to which the block moved a certain amount of distance 'x'. we have to find the coefficient of kinetic friction between the block and surface.
You can find those videos in this playlist: PHYSICS 10 IMPULSE AND MOMENTUM
Michel van Biezen sir the video you suggested helped me, but my doubt is that bullet doesn't remains inside the block, it passes out with some velocity and the block moves. We have to find the coefficient of kinetic friction between the block and surface.
That problem is solved in the exact same way. You use conservation of momentum for the collision portion and then you use the conservation of energy for the second portion when the block slides over the surface.
Michel van Biezen got it. Thanks sir...... You are best. Your video helps a lot....!!
Thanks sir. Clear explanation
I m from India and there are many books who does not cares about magnitude of rel velocity . So I was confused from two months . I thought e can have + /- sign
This is awesome! Thank you so much!
Sir, please upload lecture videos about coefficient of restitution for oblique impacts. Thank you, sir. 😊
We made a note of the request.
Omg thank you very much ;-)
Great bow-tie
Salute
Wait. Isnt 1/2 supposed to be negative?
Note that we used absolute value signs. (that is why the negative sign is not there)
No they have put modulus, means only positive values could be taken
I can't understand your language