Im having the same problem, I know the center of mass equation
(M1r1+M2r2)/ sigma (m)
but is the center of the sun the origin? so would M1xR1 just be 0?
What I am confused about is what do I plug in for what?
I already tried calculating the distance from the center of the sun to...
Homework Statement
A coin is placed on a record that is rotating at 33.3 rpm. If the coefficient of static friction between the coin and the record is 0.2, how far from the center of the record can the coin be placed without having it slip off?
Homework Equations
mv^2/r = mg(mu)...
wait what happened to this? was there an answer discussed? I am so confused! i have a very similar problem and I am doing the same thing.
I think the right equation is w^2= wi^2+2a(theta)
but i used that assuming the initial angular velocity is 0 and its wrong