Thanks for the video! btw i hope that i dont sound selfish, but can you do 'rolling motion' part of rotation? the ones where the pulley is a sphere and they ask you to find the speed of a object connected to it and where the sphere rolls down a slope? i am just sometimes confused aout where i should use angular accl formula and equate it with friction acting on the ground?
Very cool! As I said, I think we handle the "S" and "F" as a scalar unknown after dot. If I get for example (after dot) : S [1,2,3] = F [4,5,6] . Then I know that "S" = Sx + Sy + Sz. So the same for the "F". So tne whole vector equation becomes " 6 S = 15 F ". Therefore "S= 15/6 F ". So you see we just handle it as a scalar, or a magnitude. Its just an unknown with a scalar in front of it. I guess that is the abstraction that we use here.
I have a doubt that if the speed of light in air and vacuum remains same then why do their is atmospheric refraction( light coming from vaccum to our earth)
Actually, it is not the same, but very close, because the refractive index of the air is 1.0003. To be more precise, this index depends on the temperature of the air(this generate phenoms as the fata morgana)
![The most beautiful equation in math, explained visually [Euler’s Formula]](/img/n.gif)
Brilliant!
Thanks for the video!
btw i hope that i dont sound selfish, but can you do 'rolling motion' part of rotation? the ones where the pulley is a sphere and they ask you to find the speed of a object connected to it and where the sphere rolls down a slope? i am just sometimes confused aout where i should use angular accl formula and equate it with friction acting on the ground?
Very cool! As I said, I think we handle the "S" and "F" as a scalar unknown after dot. If I get for example (after dot) : S [1,2,3] = F [4,5,6] . Then I know that "S" = Sx + Sy + Sz. So the same for the "F". So tne whole vector equation becomes " 6 S = 15 F ". Therefore "S= 15/6 F ". So you see we just handle it as a scalar, or a magnitude. Its just an unknown with a scalar in front of it. I guess that is the abstraction that we use here.
Can you do a video on studying mathematics?
I have a doubt that if the speed of light in air and vacuum remains same then why do their is atmospheric refraction( light coming from vaccum to our earth)
Actually, it is not the same, but very close, because the refractive index of the air is 1.0003. To be more precise, this index depends on the temperature of the air(this generate phenoms as the fata morgana)
What pen are you using?
Pilot G2 1.0mm th-cam.com/video/DaJKoF7xsko/w-d-xo.html