Calculating the max speed a banked curve can be turned with friction
Пікірлер: 42
@user-gm9lr9nw1w5 ай бұрын
this is one of the most clear explanations I have found to help my students understand banked curves with friction. thank you
@asirzaki95223 жыл бұрын
Thanks! This was the only video I could find that involved friction in the equations, and it is very well explained.
@danabjornson70574 жыл бұрын
This is the best work I can find on "with friction" situation. Thanks for being so clear!
@luckykiller4 жыл бұрын
Only video I found that showed how to do this kind of problem correctly! Thank you!!
@ChenchenLu6 жыл бұрын
woah he can write backwards
@Siggfuggggg20005 жыл бұрын
the video is flipped so you can read it...
@wilderose28445 ай бұрын
i think we know scoob@@Siggfuggggg2000
@ghausiyunus1212 жыл бұрын
I have been a highway engineer and have held traffic, transportation, and civil engineer licenses for over 45 years. I worked with the department of transportation for 40 years, please do not forget super elevation of the curves, Some time you encounter with Broken back curves or reversed curves. Thanks
@NoOne-sq4et Жыл бұрын
This is just basic high school level circular motion.
@janecrlenjak84986 жыл бұрын
THANK YOU SO MUCH this video was a blessing
@sm104392 жыл бұрын
Amazing lesson man. Thanks for the knowledge!
@elvinstevy13003 жыл бұрын
U are forever my savior in physics
@izzy199210006 жыл бұрын
super helpful and very clear! thanks!
@sky_y94396 ай бұрын
How do u know which way is the friction? from what I can imagine, couldn't the friction also be the other way around ( upward the slope ) like how u can stick something on a slope and it stays at the same spot. Because the friction is resisting gravity making the object not ride down. Or is the bank curve scenario different from the incline example?
@immortal2318 Жыл бұрын
Very clear, thank you
@briangarciahernandez38394 жыл бұрын
Thank you sir, thanks to you my hair remains in my head.
@arnaudlucasmenard73582 жыл бұрын
great video thanks man
@DroneMesh6 жыл бұрын
Hi, How can i produce BACK EMF or voltage spikes in a circuit.. I am able to create voltage drop noise but i need Spikes.. Would be awesome if you help me out and I will mention you on my channel. Thanks
@maya-lx4ke4 жыл бұрын
you da homie for this 😎
@ItzzBrandonn5 жыл бұрын
My professor never taught us this only to find the friction in a banked curve never to actually apply it so damn is all i gotta say
@johnmcglaughlin9552 Жыл бұрын
For an inclined plane we also have mgsin(theta) which points toward the center of the curve. Why is this not included as yet a 3rd centripetal force?
@aoooriel2361 Жыл бұрын
no it points along the inclined plane
@Lin-id7nq Жыл бұрын
mg is vertically downward, so there's no need to resolve it to x and y components here. we can straightaway consider it in the y direction. if resolved however, mgsin(theta) will be along the inclined surface
@markmelek5345 жыл бұрын
good stuff helped a lot
@yidoat3 жыл бұрын
Good job bro
@shabadkaur70722 жыл бұрын
Your board is v cool
@roobear53574 жыл бұрын
Hi... What happens if the angle is 45 degrees and the coefficient of friction is 1? Looks like the denominator under the radical becomes zero?
@topiary56502 жыл бұрын
A bit late on this but the coefficient is always less than 1 or else it doesn't make sense.
@brianmcelhenny7645 Жыл бұрын
@@topiary5650 That's not true. Racing tires have coefficients well over 1. There is nothing wrong with friction coefficients over 1. The deal with the model is that it breaks down when Cos(Q)=muSin(Q). Remember the restraint in the model was looking for Vmax, so it is saying that Vmax tends to infinity... in other words you can go as fast as you want and you will never slide out. Look at the 2nd line under Sigma Fy... if Cos(Q)=muSin(Q) then -mg = 0. That's impossible, unless Fn can go to infinity
@Topiary56 Жыл бұрын
@@brianmcelhenny7645 I'm not talking about real life I'm talking about what's gonna be on the test. I'm just trying to check off all the boxes for the pre-med requirements over here and they require us to do physics. I appreciate the input though, I do enjoy learning physics and natural sciences and stuff. I'm doing a joint biology and applied math degree cuz of that.
@YunOudekerk Жыл бұрын
Why is the Fs equal to the normal force?
@thomasliechty48156 ай бұрын
they're proportional - its proablya year to late lol
@tomkejan1004 Жыл бұрын
Is anyone able to help me? Why normal force isn't just equal to to the cosine*m*g
@auwerdajn Жыл бұрын
Essentially because there is a reaction force from the road's surface as you drive around the corner. If you were at rest on the incline then the normal force would be as you stated, but because you are moving into a curve, you are pushing into the road, so it pushes back. The extreme case is a vertical wall. Imagine a hockey puck moving along the wall of an ice rink; as it enters the curve the wall pushes in on the puck towards the center of the curve, causing the puck to follow the wall. The normal force causes the centripetal acceleration. The same thing happens with a banked curve, the road surface is in effect a wall that you are driving into.
@tomkejan1004 Жыл бұрын
Thank you very much!
@weiv62293 жыл бұрын
how do i find force of friction?
@Peter_19862 жыл бұрын
The static force of friction "fₛ" is often defined as "fₛ = μₛ⋅n", which means that it is the product of the static coefficient "μₛ" multiplied by the normal force "n". The static coefficient has different values depending on which surfaces that make contact with each other, and it will usually be given to you.
@nyakikayepersion40283 жыл бұрын
It is good but review on where you placed friction,it has to be on the contact interface of the car and surface not at the center,only normal reaction and weight are acting at the centre not friction
@jeserak2 жыл бұрын
it applies at the center of mass, this is why he puts it in the center
@johnmcglaughlin9552 Жыл бұрын
Actually the normal force would also be acting at the contact interface of the car and surface. But theoretically the effect shouldn't matter if the car is considered a rigid body. Truth is it is not exactly rigid since there is sway between tires and car body on sharp turns.