Предмет: Физика, автор: Юляшка14

Тема: Миханическая работа

Вопрос:

Почему когда девочка играет на пианино совершается миханическая работы и совершается ли она вообще?

Ответы

Автор ответа: Fishy

да

она нажимает на клавиши и в фортепиано идет удар молоточком

Автор ответа: vlad310362

Работа всех тел какие действуют на тело равна смене его кинетической енергии.А кинетическая енергия имеет такой параметр как скорость.Значит механическая работа совершается

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