[领域] (题目相关领域) 简谐 [来源] (课本习题、考古题、参考书...) 考古 [题目] 3.A pendulum of length L and mass M has a spring of force constant k connected to it at a distance h below its point of suspension as shown in a figure below. Find the period of vibration of the system if the amplitude of vibration is small. Assume the vertical suspension of length L is rigid and its mass is negligible. _____________________ | | |h | | | L |__ /\ ____| | \/ \/ | | k | O M [瓶颈] (写写自己的想法，方便大家为你解答) 初步构想 是设力矩τ=-CΘ Θ为摆动角度，C为常数 之後就都没想法了...Orz 有人能帮解答吗 感恩 -- ◢██◣ 克 ████ 郑 ◢◤◥◣ 瓦 炸掉吧!炸掉吧!炸掉吧!炸掉吧! ◢◤ 杀 ◥◣劳 ████ 谬 ◤‵′◥ 基 我是来自PTT的恐怖份子!!!! █ ⊙ ⊙ █柏 ▎ 先 ′⊙ ⊙‵大 昨天炸飞乡民!今天炸掉板主! █ 皿 █ Ⅱ □︵□ 生 ′ ＞ ‵ 人 PTT Metal City ψdiabloq13 █◥ ︶ ◤█世 ◥ ▽ ◤ ◥ ▼ ◤? 炸!炸!炸!炸掉乡民板主! ◥◤ │ ◥◤ │◢ ◥┼◤ ◣│ ◢¯＿- ◣ ─ 取自PMC专辑《瓦斯游戏》─ --

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