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As seen, two balls are hanged with a holder in the middle. Clackers (also known as Clankers, Ker-Bangers, latto-latto in the Philippines and most of Southeast Asia, and numerous other names [1]) are toys that were popular in the late 1960s and early 1970s. [2]

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Jul 2, 2024 · Lato Lato is a toy that consists of two identical solid balls that are secured together with a rope and can be used as a learning tool in physics. In this study, we examined why the Lato Lato toy uses two balls with the same mass rather than balls with different masses.

Lato Lato Attach a ball to each end of a string and connect the center of the string to a pivot. When the pivot oscillates along the vertical direction, the balls start to collide and oscillate with increasing amplitude.

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浅析：该题目来源于一个经典的玩具Lato Lato。本题目最关键的两个现象是碰撞与受迫振动，前者使得整个体系损失能量而后者会补充能量。通过设计实验或者用现有理论进行碰撞时能量损失的估计将是本题的一个难点。