yeah i don't know... you are correct, i think it was one of those things where i was making it harder in my head than it has to be, thanks for your help :)
Ok yeah but then the angular acceleration is to the left because the wheel is slowing down... which means that friction should be is the opposite direction right? but angular velcocity should agree with the direction of friction... which means you have two frictions opposing each other
You have a wheel that is rolling without slipping on the ground, it is being subjected to no outside tourque or pulling force... which way is friction acting and why.
I thought that this would be easy but it turns out to be tricky, if the wheel isn't slipping the velocity equals omega...
No one in my class got any farther than I did on the track problem, and i am afraid when Ehild gave me some help it went just a bit over my head in terms of how to set up the differential equation that i am going to be differentiating... i am going to attach the problem again, because my...
Ok here is the track problem again except this time drawn out with some of my work... this is using Newtons second law... i used microsoft word to draw the track and spring so its a little ruff but you get the idea... still could use some help no matter which way i do it i end up getting one...
Ok, so i posted this problem last night and got a couple of replies, but sadly no real help. I already have tried to use lagrange equations to solve the problem, and F=ma... i just need help setting up an integral i mean with the lagrange equations i can't figure out how to incorporate the...
alright
ok the collar is just a metal piece that fits onto the track and can't come off of it... so the track is a circular metal tube and the collar is just a slightly larger in diameter piece of tubing that's only a couple inches long, that is fitted around the track. And you know i said the...
Alright so my physics teacher assigns this problem, its a take home test problem and we are allowed to use any resource available to us including the internet, he says you won't find the answer anywhere on the web and even if you did it wouldn't look like you did it. Anyway, i am pretty decent...