Предмет: Физика, автор: Аноним

На какую высоту нужно поднять кирпич массой 2,6 кг, чтобы его потенциальная энергия возросла на 19,9 Дж?

Ответы

Автор ответа: MegaLogic

Изначально потенциальная энергия равна нулю.
Eп=mgh
h=Eп\mg
h=19,9/2,6*9,8= 0,781 м

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