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Пружигу, яку одним кінцем закріплено до стіни, стиснули 5 см. Після того як пружина розпрямляється, вона штовхає кулю масою 150г у горизонтальному напрямі. Якої швидкості набуде кулька, якщо жорсткість пружиги дорівнює 960 Н/м?
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ну как то так. ответ а
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Автор:
avery3uf8 - 5 лет назад
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