12Mr2ω2\frac{1}{2} \mathrm{Mr}^{2} \omega^{2}21Mr2ω2
Mr2ω2\mathrm{Mr}^{2} \omega^{2}Mr2ω2
Mr2ω\mathrm{Mr}^{2} \omegaMr2ω
14Mr2ω2\frac{1}{4} \mathrm{Mr}^{2} \omega^{2}41Mr2ω2