# Differences

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 phy131studiof17:lectures:chapter11 [2017/10/23 09:10]mdawber [Rolling with spin] phy131studiof17:lectures:chapter11 [2017/11/02 10:10] (current)mdawber [Changing the moment of inertia of a spinning object] Both sides previous revision Previous revision 2017/11/02 10:10 mdawber [Changing the moment of inertia of a spinning object] 2017/10/23 09:10 mdawber [Rolling with spin] 2017/08/04 13:41 external edit 2017/11/02 10:10 mdawber [Changing the moment of inertia of a spinning object] 2017/10/23 09:10 mdawber [Rolling with spin] 2017/08/04 13:41 external edit Line 55: Line 55: But if it rotates around a point $0.375+0.15\,​\mathrm{m}$ from it's center of mass then its moment of inertia is But if it rotates around a point $0.375+0.15\,​\mathrm{m}$ from it's center of mass then its moment of inertia is - $I=\frac{1}{2}\times3.5\times(0.75/2)^2+3.5\times(0.375+0.15)^2$\\ + $I=\frac{1}{12}\times3.5\times(0.75)^2+3.5\times(0.375+0.15)^2$\\ $=0.16+0.96=1.12\,​\mathrm{kgm^2s^{-1}}$ $=0.16+0.96=1.12\,​\mathrm{kgm^2s^{-1}}$