■解答
① \(\displaystyle\frac{1}{2}mgL\) ② \(\sqrt{gL}\) ③ \(2\sqrt{\displaystyle\frac{L}{g}}\)
④ \(\displaystyle\frac{\sqrt{3}\alpha +g}{2}\) ⑤ \(\displaystyle\frac{\sqrt{3}g-\alpha}{2}m\) ⑥ \(\displaystyle\frac{1}{2}\)
⑦ \(\displaystyle\frac{2(M+m)}{4M+m}g\) ⑧ \(\sqrt{\displaystyle\frac{4M+m}{M+m}･\frac{L}{g}}\) ⑨ \(\displaystyle\frac{F}{M+m}\)
⑩ \(\displaystyle\frac{2}{m}\left(g+\frac{\sqrt{3}F}{M+m}\right)\) ⑪ \(\displaystyle\frac{2}{m}\left(\sqrt{3}g-\frac{F}{M+m}\right)\) ⑫ \(\displaystyle\frac{\sqrt{3}\mu-1}{\sqrt{3}+\mu}\)
