to find T i had:
T = umg - m r1 w^2
as well as
T = m r2 w^2 -umg
m=.035kg
r1=.03m
r2=.06m
w=12.7 rad/sec
u=.74
g=9.81
i plug those in and get
T=.0847
which apparently is right...i had that before i don't know y it wouldn't take it as being correct...thanks for all you help!
Ok maybe those equations aren't right either...I can't seem to get the 12.7 for w again, tho I know that is right. I have no idea what I'm doing anymore!
ok i realized i typed in the wrong ones...i had those at first, the new ones are
1) -T + umg = m r1 w^2
2) T + umg = m r2 w^2
i believe that is how i got 12.7 for w (i have so much work here and half of it is wrong, I am not sure which is which anymore). I just tried solving for T though...
my equations i used were:
1) T - umg = m R1 w^2
2) -T - umg = m R2 w^2
i was able to get w, but then i plug values back in and its not accepting my answer for T as being correct. i have no idea what I am doing wrong. please help!
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