Откуда число 2 в формуле для кинетической энергии? [№372]
группа «Дом культуры и мудрости Перистотеля»:
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![Откуда число 2 в формуле для кинетической энергии? [№372]](https://sun9-57.userapi.com/impg/tQ00gKA9FemYAV7k5kXF63MT7fBUsKH4zOJluA/4cdKdTE2WfM.jpg?size=320x240&quality=95&keep_aspect_ratio=1&background=000000&sign=dfa58df8f8f78ec6cfed83c7c6ffbabc&c_uniq_tag=-5uUbie9uYq6-YWzNWhQLV1LFcW2PwKvOLYNStNH-MU&type=video_thumb)
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