Предмет: Физика, автор: Johnny2002Crazy

Цеглина масою 5 кг має потенціальну енергію 20 Дж. На якій висоті над підлогою

розташована цеглина, якщо за нульовий рівень узято поверхню підлоги?

Ответы

Автор ответа: floverina
0
Eп = mgh = 20. h = 20/mg = 20/5*10 = 2/5 = 0.4 м.
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