Flipping Physics I start my first semester as a senior in EET tomorrow! Programming, high frequency circuit design, electronics communication systems and... The Beatles. Advisor told me I needed arts credits...
Man, I hope your channel keeps growing and hopefully you get an even greater platform than youtube. I have been binge watching your videos for days now and you truly deserve more than you give. There are only so few good you tube educators and I know that the best of the best will get recognized all around the world soon enough and trust me you will be there. Cheers mate :)
I’ve always found physics extremely interesting but have had a hard time getting my daughter to realise how interesting it is. I’ve just found your channel and it’s already helped her improve her grades just by seeing it presented in an engaging way. Thank you sir
I have a quick question. Since you throw the ball up, isn't the center of mass of the original system going up and then coming back down? The boat and you should theoretically move down if that was the entire system. Do the effects of gravity and the buoyant force of water play into effect here to keep it in line with predictions? I do see the boat and you initially move downward, but are brought back up to the same height because of the buoyant force. I guess what I'm trying to ask is, the center of mass kind of changes, but do the non-negligible forces acting on the system account for it? Thank you!
In real life only when the ball is in contact with the boat or the person holding it it is considered a part of the system When it is in the air it won't change the Com of the boat and man system in the vertical axis
When he throws the ball out of the boat- at what point is the ball no longer part of the system? Is it when he throws it, since that force is technically 'external', or is it when the ball hits the water instead of the boat?
The ball becomes "external" to the system, the instant it departs from his hands, propelling the boat to the right. The ball rejoins the system when it lands in the boat and comes to rest.. The boat itself comes to rest after absorbing the impact of the ball that then nullifies its own momentum.
So well explained with all variables involved with y and x variables, exterior and the interior system and the motion in relation to the earth vs. motion in relation to the center of the mass of the boat. Without having all these details included in the explanation, physics can be confusing!
@@FlippingPhysics I think that is why teaching and learning physics is such a challenge. That is why your channel is unique where your contents have the academic rigor while you are able to carry some components of entertainment to deliver the physics concepts. Your sacrifice of your teaching career in order to deliver such high standard physics contents on UA-cam platform is very much appreciated.
So in the beginning, the centre of mass moves to the left, because the ball moves to the left, but in order for the system to keep its centre of mass the same relative to the earth, it moves to the right. So it basically moves a bit to the left and a bit to the right, that way it actually doesn't change its position? I am having a bit of trouble understanding, it would be great if someone told if this is correct
Great video! I have one question, though. Since this question requires a quantitative understanding of center of mass, would it be able to be tested on the AP Physics 1 Exam? Thank you so much!
You are absolutely amazing and the most important thing for being amazing is that your way of visualisation of topic is fantastic. Well done bro. keep it up. Best wishes from INDIA.
Well done once again Mr.P. My inner nerd is pondering the miniscule external friction from the water during the slide. Should the final velocity be (albeit negligible and perhaps not even asked in AP) a tiny, tiny bit left due to this brief external force? Cheers!
The friction from the water during the slide is negligible compared to the waves pushing on the boat. It took several takes to get one where the waves did not visibly push the boat!
@@FlippingPhysics The canoe is supported by a buoyant force, which requires a displaced equal mass of water, whose movement directly depends on the movement of the boat. I would expect that the inertia of the displaced mass of water would also impact this problem. Analogous to a sideways Atwood machine, the displaced mass of water would have equal and opposite kinematics as the boat. I would expect that this factor would effectively double the inertia to the boat + Mr P system. Is this a realistic factor that would come in to play in this problem? If not, what would enable the boat to move without this effect impacting its motion?
When the ball is not a part of the system why will the force applied by ball on mr. p and force applied by mr.P on ball will not be equal ??? Since Newton's third law must be applicable...and According to Newton's third law action reaction pairs are always equal !! Please explain if someone sees my comment !!
What if the ball after landing in the canoe collides elastically and rebounds for the thrower which makes its contact with the ball and ball exerts force on the thrower and hence on the canoe which speeds it up and since from the first throw the canoe have been moving to the left the cycle repeats and the boat never stops !? Plz help ? (Sorry for bad English)
If the net force acting on the system is zero, using Newton's Second Law, you should be able to determine what happens to the center of mass of the system.
Agreed. I show that here: www.flippingphysics.com/conservation-of-momentum.html and here: www.flippingphysics.com/conservation-of-momentum-demonstration.html
It is not really a close system, because when you throw a ball you pushed some air. This air will push the boat and you. Try this in a closed system maybe inside a car or something. I doubt the car will move at all no matter how many balls you throws inside the car. Here is what happen inside a car. You throw a ball to the left and the car will move to the right. The ball hit the glass car to the left and the car will move to the left too. So the car will ended at the same position.
A car has a lot more bearing friction than a canoe in the water would, so even if you put your car in neutral on a flat road, you probably won't be able to throw enough balls to get the car to budge. A car also has a lot more mass relative to the person in it, and relative to the mass of a ball that a person could practically throw.
@@FlippingPhysics Grumman made Aluminum canoes. Not sure if that is a Grumman, but it looks like it. People dismiss them as old, crappy boats but they are in fact quite desirable by some.
These are much more enjoyable when I'm not being tested on them anymore!
Glad you are still learning!
Flipping Physics I start my first semester as a senior in EET tomorrow! Programming, high frequency circuit design, electronics communication systems and... The Beatles. Advisor told me I needed arts credits...
Sounds like fun. What's The Beatles class? History, music, ... art history?
Flipping Physics description said it was about exploring how the Beatles grew as songwriters. So... Music history.
This must have taken a ton of time! Sir, your videos are incredible! You do a great service to the entire world, by making them.
These videos do take a bit of time. Glad you appreciate it! flippingphysics.com/making-a-video.html
After taking a physics class, I have so much more appreciation for real life physics! The way the world, and matter works is crazy. Awesome video!
The more you understand how physics describes the world around you, the more you understand how much you do not understand.
You are the best physics teacher on youtube
I am glad you feel that way.
Arjuna's reunited 🌝
Man, I hope your channel keeps growing and hopefully you get an even greater platform than youtube. I have been binge watching your videos for days now and you truly deserve more than you give.
There are only so few good you tube educators and I know that the best of the best will get recognized all around the world soon enough and trust me you will be there. Cheers mate :)
Thank you for your hopeful comment. It's nice to know people believe in what I do.
Arjuna jee? 😂 ....rj sir op❣️
Physics really works!
Thanks for showing this.
This video is awesome.
Keep making such videos.
Love from India! 😊
It means so much to me to be able to help people learn on other continents. Thanks.
I’ve always found physics extremely interesting but have had a hard time getting my daughter to realise how interesting it is. I’ve just found your channel and it’s already helped her improve her grades just by seeing it presented in an engaging way. Thank you sir
So glad to know I am able to help your daughter learn!
Couldn't wrap my head around that change in distance but this helped a lot! Thank you!
This demonstration shows the inside of center of mass and momentum conservation in a system. Such a subtle concept made clear! Thank you, Mr. P.
You are welcome!
Arjunas here after rj sir class, 😂😂#dhat mardawa 😅
Dhatt mardwa
Yess 🙏🏻🙏🏻🤣🙏🏻
Why are you so so so so underated with that content, you can easily be in top 100 (in that field)
Sir just found ur channel love how the physics actually works
Glad you found my channel. Hopefully you will keep learning.
Excellent explanation and demonstration! Thanks Mr. P!!!
You are welcome Brendon. I hope you learned something!
Who is come here after rajwant sir lecture ?
Another fabulous physics fix. I love your videos. Thank you Mr.P.
You are welcome Nick. Glad to give you your educational fix.
Center of mass is a pretty tricky topic, but wow you made it seem so obvious!
The physics works!! And it's really cool to watch it in action. Thank you for this 😊
I have a quick question. Since you throw the ball up, isn't the center of mass of the original system going up and then coming back down? The boat and you should theoretically move down if that was the entire system. Do the effects of gravity and the buoyant force of water play into effect here to keep it in line with predictions? I do see the boat and you initially move downward, but are brought back up to the same height because of the buoyant force. I guess what I'm trying to ask is, the center of mass kind of changes, but do the non-negligible forces acting on the system account for it?
Thank you!
In real life only when the ball is in contact with the boat or the person holding it it is considered a part of the system
When it is in the air it won't change the Com of the boat and man system in the vertical axis
great explanation
Very well explained ! Thank you
Glad it was helpful!
Who else is here after watching rajawant sir's lecture.
#dhat mardava
Great explanation ❣❣🔥
Dhat mardawa❤️🔥
Arjuna aaye k nhi
What a great way to learn. Thanks, Mr. P.
Thank you Holly! I am glad you enjoyed learning with me.
physics works when I found ur channel.....keep going
Thanks, will do!
When he throws the ball out of the boat- at what point is the ball no longer part of the system? Is it when he throws it, since that force is technically 'external', or is it when the ball hits the water instead of the boat?
The ball becomes "external" to the system, the instant it departs from his hands, propelling the boat to the right.
The ball rejoins the system when it lands in the boat and comes to rest.. The boat itself comes to rest after absorbing the impact of the ball that then nullifies its own momentum.
I swear you are the best
Please don't swear.
Dear flipping physics
You are creating quality content with creativity and great acting skill . I love your channel
Thanks for the love!
Amazing sir love from 🇮🇳
Arjuna Op #kuch samajh nahi aaya 🤣😂❤️❤️
So well explained with all variables involved with y and x variables, exterior and the interior system and the motion in relation to the earth vs. motion in relation to the center of the mass of the boat. Without having all these details included in the explanation, physics can be confusing!
Thanks. I tried to split the video up into first, the basics, then second, the math. I think you need both to truly understand this!
@@FlippingPhysics I think that is why teaching and learning physics is such a challenge. That is why your channel is unique where your contents have the academic rigor while you are able to carry some components of entertainment to deliver the physics concepts. Your sacrifice of your teaching career in order to deliver such high standard physics contents on UA-cam platform is very much appreciated.
Thanks for the kind words. They are much appreciated.
Thanks! Great explanation, good job! 👍
Dhat mardawa..
Dhat mardawa
this video is amazing, it helps a lot in my physics class
Great!
Awesome great teaching.
Thank you Mr. P. Very Nice.
So in the beginning, the centre of mass moves to the left, because the ball moves to the left, but in order for the system to keep its centre of mass the same relative to the earth, it moves to the right. So it basically moves a bit to the left and a bit to the right, that way it actually doesn't change its position? I am having a bit of trouble understanding, it would be great if someone told if this is correct
Kon kon Arjuna 1.0 ke students hain aur yahan aaye after rj sir class
Great video! I have one question, though. Since this question requires a quantitative understanding of center of mass, would it be able to be tested on the AP Physics 1 Exam? Thank you so much!
The first half of the video is entirely qualitative. That is the part which could (and will) be tested in AP Physics 1.
Student of Rajwant sir from PW arjuna attendance please
Arjuna op
You are absolutely amazing and the most important thing for being amazing is that your way of visualisation of topic is fantastic. Well done bro. keep it up. Best wishes from INDIA.
I love that I am able to help you learn from the other side of the planet!
Awesome job! You made this very confusing problem seem pretty doable after all :)
Thanks!
Thanx a lot sir, for such great representation of a beautiful concept ❤
Glad you think so. This video was fun to make!
You're awesome, Mr. P!
Thanks for the love!
Well done once again Mr.P.
My inner nerd is pondering the miniscule external friction from the water during the slide. Should the final velocity be (albeit negligible and perhaps not even asked in AP) a tiny, tiny bit left due to this brief external force? Cheers!
The friction from the water during the slide is negligible compared to the waves pushing on the boat. It took several takes to get one where the waves did not visibly push the boat!
@@FlippingPhysics quite the dedication to the demo. Cool to go authentic instead of green screen as well
@@FlippingPhysics The canoe is supported by a buoyant force, which requires a displaced equal mass of water, whose movement directly depends on the movement of the boat. I would expect that the inertia of the displaced mass of water would also impact this problem. Analogous to a sideways Atwood machine, the displaced mass of water would have equal and opposite kinematics as the boat. I would expect that this factor would effectively double the inertia to the boat + Mr P system.
Is this a realistic factor that would come in to play in this problem? If not, what would enable the boat to move without this effect impacting its motion?
When the ball is not a part of the system why will the force applied by ball on mr. p and force applied by mr.P on ball will not be equal ???
Since Newton's third law must be applicable...and According to Newton's third law action reaction pairs are always equal !!
Please explain if someone sees my comment !!
Best ever video
anyone from arjuna batch
Me
Arjun jee physics wallah
I am from india....and a regula viewer on your chanel....this video is realy realy amazing.....please make more videos on centre of mass.....
I will do my best. Love to you from the USA!
This was fun to watch!
Saweet.
OH MY GOD . THEY SHOULD TEACH LIKE THIS IN UNI
I hope they do!
Can you please explain the ball falling out of the canoe situation
What if the ball after landing in the canoe collides elastically and rebounds for the thrower which makes its contact with the ball and ball exerts force on the thrower and hence on the canoe which speeds it up and since from the first throw the canoe have been moving to the left the cycle repeats and the boat never stops !? Plz help ? (Sorry for bad English)
Thank you!
kuch samagh nhi a arha
The physics works! Thank you.
Why yes, it does!
@3:29 what if initially the system is in motion and net force is zero than what will happen to centre of mass . your's new neet subsciber
If the net force acting on the system is zero, using Newton's Second Law, you should be able to determine what happens to the center of mass of the system.
@@FlippingPhysics thank you
.
I have to watch it multiple times to understand the concept
what if you drop the ball in the water instead of throwing. the center of mass will change but net force in x-axis would be 0
You are really super super👍👍👍👍👍👌
Thank you so much 😀
Law of conservation of momemtum
Agreed. I show that here: www.flippingphysics.com/conservation-of-momentum.html
and here: www.flippingphysics.com/conservation-of-momentum-demonstration.html
Why you got a life vest on in like 5 in of water?
Very nice video :)
Thanks!
Why is this video like having a dance party on the beach? Because they are both throwing a ball close to water!
Kind sir, you are very entertaining.
amazing
Waiting for them to admit they are all identical quadruplets
Never!
Anyone here from physics wallah
not me
@@FlippingPhysics you should see the lecture
Yes 🙋
@@FlippingPhysics pw institute recommend this vdo us
Pw se kon kon ayeya hai
It is not really a close system, because when you throw a ball you pushed some air. This air will push the boat and you. Try this in a closed system maybe inside a car or something. I doubt the car will move at all no matter how many balls you throws inside the car. Here is what happen inside a car. You throw a ball to the left and the car will move to the right. The ball hit the glass car to the left and the car will move to the left too. So the car will ended at the same position.
A car has a lot more bearing friction than a canoe in the water would, so even if you put your car in neutral on a flat road, you probably won't be able to throw enough balls to get the car to budge. A car also has a lot more mass relative to the person in it, and relative to the mass of a ball that a person could practically throw.
kon kon live class sa aaya ha
thank you
i knew the canoe would go backward although i thought the canoe would go the other way when the ball landed and not stop..
.
Sir why you are not taking gravity as external force
Because it's balanced by Normal Force of the boat otherwise the boat would be flying.
The physics works!
Glad to see it wasn't a bowling ball. Grummans are getting rarer.
Given the age of the canoe, I am not sure that would have worked out well.
Grummans?
@@FlippingPhysics Grumman made Aluminum canoes. Not sure if that is a Grumman, but it looks like it. People dismiss them as old, crappy boats but they are in fact quite desirable by some.
Kuch samajh nahi aa rha😂
But why constant velocity?
Because once the ball leaves his hands, there ceases to be a horizontal force on the canoe + Mr P system, and the canoe proceeds to the right.
999th like!
Hopping for 1000!!!!
@@FlippingPhysics it's 1k now!!! :)
Wow
u mean, the formula works :p
God
Mr. P is a character in Brawl Stars
I wish...
any jee aspirant here ?
Jai shree ram 🇮🇳