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in (1/2)(r^2)dm, dm = (rho)(pi)(R^2)dz, (r^2)=(R^2)-(z^2), and rho=(3M)/(4piR^3)... but it gives me I=(1/2)M(R^2) which is wrong. Where am I going wrong in my thinking? I'm closer now than I am before though...
using "primitives" to integrate moments of Inertia
My classmates are lost and I just can't think the way my proffessor does when approaching these problems. He gave us about 50 shapes to find moments of inertia for this weekend and I'm not having any trouble doing them... my way. I can use a...