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El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350922648157:dw
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350922771112:dwdw:1350922889055:dw
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
r(lambda) d(theta)?
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350923517490:dw
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
R^3 (lambda) d(theta)?
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
correct ... the shape of ring goes all the way round to 360 and varies with d(theta) ... so what do we do?
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
You mean....?
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350923841372:dw
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
whole ring? length = r theta I = r^3 theta (lambda)
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
no ... this varies with theta ... so we integrate it along 0 to 2 Pi
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350924064331:dw
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
I think I got it..
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
so what is the final answer?
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
(lamda) R^3 (2 pi)
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
yep .. what would (lamda) (2 pi) R = ??
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
Wait.. I was partly right.. length = r theta I = r^3 theta (lambda) One more condition there is theta = 2 pi I = r^3 (2pi) lambda
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
yeah the moment of Inertia of ring is MR^2
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350924842776:dw
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350924935079:dw
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
Wait, surface / unit area? What's that?
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
sorry ... mass per unit area ... typo.
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
Mass = sigma (area) = sigma (pi)[(r_2)^2(r_1)^2) = sigma (pi) (dr) (2r+dr) Have to go now. I'm sorry!
 2 years ago

El_Psy_Congroo!! Group TitleBest ResponseYou've already chosen the best response.0
dw:1350925702449:dw
 2 years ago
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