Introduction to Relative Motion using a Quadcopter Drone (UAV)
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- Опубліковано 3 сер 2024
- Two vehicles driven at different speeds parallel to one another is a great one dimensional way to introduce relative motion. When viewed from above using a quadcopter drone, it is even better! Thanks Aaron Fown of FirstUAV (www.firstuav.co) for providing the wonderful, non-terrestrial viewpoint.
0:00 Intro
0:35 Visualizing the example
1:31 Understanding the subscripts
2:46 Visualizing the Velocity of the minivan with respect to the Prius
3:33 Solving for the Velocity of the minivan with respect to the Prius
5:05 Negative vectors in relative motion
6:11 Understanding when a subscript drops out of the equation
7:05 Solving for the Velocity of the Prius with respect to the minivan
8:17 Review / visualizing multiple velocities
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You are a hero, and will live in Eternity. Thank you for your dedication to humanity, sir.
Wow, thanks
These are the best physics videos on UA-cam. Incredibly helpful! Thank you so much!
+Connor Andreatidis Thanks. I do my best.
This was GREAT! I really got how the slower vehicle looks like it's going backwards. I had read this, but couldn't visualize it before. I realize that I see this all the time when I'm driving. But because I KNOW that the slower cars I pass are not going backwards, I compensate in some way and see them as going forwards.
+Alexandra Hopkins Thank you for your wonderful comment. It warms my heart to know I am helping people learn.
𝓢𝓪𝓶𝓮 𝓽𝓱𝓲𝓷𝓰𝓼 𝓱𝓪𝓹𝓹𝓮𝓷𝓮𝓭 𝔀𝓲𝓽𝓱 𝓶𝓮!!!
this is what I love real physics with so much visualisations .thanks ,wanted this since my childhood
I was pretty excited when I realized I could make this video. Glad you know you share my excitement!
most clear physics video out there, thank you!
Yes!!!!! This was very helpful! Now I understand how to approach Relative Motion problems!!!
Love you both. Thanks for these lovely comments!
What would be the best vantage point from which to understand relative motion? A non-terrestrial one I always say! So, I asked Aaron Fown of FirstUAV (www.firstuav.co) to film my wife and me driving two vehicles parallel to one another. Voila! Relative Motion. Thanks Aaron! #PhysicsED #flipclass #UAV
a last nice add wouldve been to flip one of th comparing videoshots demonstrating that both cars in fact are visually driving at the same speed. geat video:)
Thanks you dude, Your examples teaching much more physics to me. I learned relative motion today clearly.
+Mohamed Azardeen Glad to help!
Geoffrey, Aaron, this is beautiful work. Clear, rigorous, accessible and relevant. Thanks for your efforts. I'm trying to be creative and modern in designing lessons and coursework for my 11th grade physics students this fall. I thought that bringing drones and robotics into the classroom would be a great way to start if possible. Thankfully I don't have to start from scratch. You're making a very big impact on education through your work; know it's appreciated!
William Josler Thanks! This video was a lot of fun to imagine and create. Glad to know we will be able to help your students learn!
that was bloody brilliant...and i see how committed you are to your work .. man you dont have to be sorry for that missing #arrow on the vector.....i owe you. a subscription...😄😄
thank you! ... where in the video did I miss an arrow on the vector?
+Flipping Physics 7:38
That's funny. I forgot about that. Oh well.
By the way, thanks for the subscription and kind words.
+Flipping Physics 😄😄
this is how I learned to drive at highways. relative to the flow of cars, you are just standing or driving slowly
Intense effort only comes from interest. Hence proved.👍
Thank you sir from India. Your videos gave me a clear knowledge on relative motion. Thank you so much
You are welcome. From the USA.
Very very very great video .I understood better than our sir explained. Thank you very much.
You are welcome very much. So glad to help you learn!
You're awesome and I hope you don't mind me referring to your videos for my own students!
Geoffrey Hart So glad that you like my videos. I would love for you to share my videos with your students, that is actually the main reason I make them!
Wow great work
thanx for this awesome video very helpful to understand concepts....
+Aditya Kuware You are welcome.
amazing video
This. is. BRILLIANT
Thanks. And I agree that physics is awesome.
Thank u For making This 👍
You are welcome!
If we have to define relative motion what would be it's statement ?
Thanks!
(and physics is awesome.)
𝓡𝓮𝓪𝓵𝓵𝔂 𝓪𝔀𝓮𝓼𝓸𝓶𝓮 𝓰𝓾𝓻𝓾 𝓰𝓲 !!!!𝓵𝓸𝓿𝓮 𝓯𝓻𝓸𝓶 𝓲𝓷𝓭𝓲𝓪 👌👌👌
please help me can I get a video explaining how is speed of rotation of sun is calculated using dopplers effect of light ....?
Im a little confused. When the "p"s cancel out in Vpe + Vmp wouldn't you be left with Vem not Vme, or does that order not matter.
Remember what the equation Vme = Vpe + Vmp means: The velocity of the minivan with respect to the Earth equals the velocity of the Prius with respect to the Earth plus the velocity of the minivan with respect to the Prius.
When the Prius subscript cancels out from the right hand side of the equation, you are left with blanks: the velocity of the ______ with respect to the Earth plus the velocity of the minivan with respect to the _____. Combine those two and you have the velocity of the minivan with respect to the Earth.
If the Drone flies up, does it have to counter earths rotation to stay stationary ?
The drone and the earth's surface have the same tangential velocity on lift off (roughly 1000 mph at the equator). As the drone gains altitude its radius from the center of the Earth increases and its tangential velocity remains the same. If the drone ever got high enough, you might be able to notice it wasn't above the exact same point, however, considering the radius of the earth is roughly 6380000 meters, an increase in radius of 20 meters isn't going to make any noticeable difference.
There is a vehicle that flies above the surface of the Earth, a significant distance where it does have to change its speed to keep up with Earth's rotation to be "stationary", and that is called a geostationary satellite. It flies to 5.6 times the radius of Earth above the surface of the Earth. And it has to increase its speed to do so, from roughly 1000 mph to 6900 mph. Once there, it maintains a fixed view of Earth as it orbits in a manner that is synchronized with Earth's rotation.
A drone would do the exact same thing, except on a much smaller scale. At the equator, it only needs to move 100 nanometers per second relative to Earth's surface, in order to fly to 20 meter elevation and retain a stationary view of Earth, assuming perfectly stationary air. Of course, a real drone also has to course-correct for air currents that are much more significant, so achieving this speed is very little effort.
who here came from Dr Vaughn's class?