Предмет: Физика, автор: caesar

Тренируясь, штангист взял в рывке штангу. Одинаковые ли механические работы были произведены силой, приложенной к штанге, на первой и второй половинах высоты подъема ее?

Ответы

Автор ответа: yeS4ka

0

Да, одинаковые. Формула механичесой энергии = -m*g* Δh

Δh по условию =; масса и g тем более. Советую почитать что такое нулевой уровень потенциальной энергии и таких вопросов больше не возникнет

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