Предмет: Физика, автор: 240105

Тіло падає з висоти 17м. Визначте швидкість його руху на висоті 12м. Опором повітря знехтуйте.

Ответы

Автор ответа: Dedagenn

6

Из закона сохранения энергии Епот+Екин=конст получается v=√[2g(h1-h2)]= √[2*10*5]= 10м/с

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