Предмет: Физика, автор: DariaMihailova8169

Стальной шарик массой 50г свободно падает с высоты 15 м. Чему равна кинетическая энергия шарика на высоте 5 м от поверхности земли? Сопротивлением воздуха и нагреванием шарика пренебречь.

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Автор ответа: sokolovvovikn
0
Ek=m*g*(h1-h2)=0,05*10*(15-5)=5 Дж
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