Предмет: Физика, автор: Posnavatel

ДАЮ 45 БАЛЛОВ

Кулька яку підвищенно на нитці здійснює коливання Які зміни енергії при цьому відбуваються? чи виконує роботу сила натягу нитки? сила тяжіння?

Ответы

Автор ответа: vadim17081

Ответ:

Змінюється і кінетична і потенціальна енергія. Сила натягу нитки діє перпендикулярно до руху і із цього слідує, що її робота рівна 0. А сила тяжіння виконує роботу

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