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Introductory Physics Homework Help
Calculating moment of inertia and torsion constant
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[QUOTE="Erenjaeger, post: 5532079, member: 592203"] [h2]Homework Statement [/h2] A clock balance wheel has a period of oscillation of 0.250 s. The wheel is constructed so that its mass of 10.0 g is concentrated around a rim of radius 0.600 cm. a) What is the wheels moment of inertia? kg m^2 b) What is the torsion constant of the attached spring? N m / rad[h2]Homework Equations[/h2] I=mr^2[/B][h2]The Attempt at a Solution[/h2] starting with part a) I have gone mr^2 and gotten 3.6x10^-7 so i assumed that answer didnt make sense, I thought it could be because it says the mass is concentrated around the rim so do i treat that as if it was a ring? If so I know that dI = dm r^2 so ∫dI = r^2 ⋅ ∫dm so I = r^2 M where M is the mass of the whole ring system. Am I correct in this working or was my first calculation correct ? [/B] [/QUOTE]
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Introductory Physics Homework Help
Calculating moment of inertia and torsion constant
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