Welcome to the forum! I'm new too. =]
Just know that you'll get help much faster if you show that you tried the problem first
Edit: You should read this https://www.physicsforums.com/showthread.php?t=94379"
Homework Statement
The rod is at rest and is released, what is the angular acceleration immediately after release? The pivot is frictionless, gravity is 9.8 m/s^2.
Homework Equations
Icm = (1/12)ML^2 => Inertia at center of mass, this was given in the problem, i don't think it's necessary...
I ended with
Mgd*sin(A) = Mv^2
I divided both sides by Mgsin(A), so the M's cancel and I'm left wit
d = v^2 / gsin(A)
oops! I made a type when i got d=234.17
it's just d = 34.17 m
AH!
I just checked the website where i submit my answers and 34.17 is right. I thought i had already entered that...
Sorry, the title is wrong, it's hoop rolling UP an incline
Homework Statement
In a circus performance, a large 3.8 kg hoop
with a radius of 1.8 m rolls without slipping.
If the hoop is given an angular speed of
5.5 rad/s while rolling on the horizontal and is
allowed to roll up a ramp...