На какой высоте находится гиря массой m 5кг, если она имеет потенциальную енергию Е=0, 2 кДж

4м

Объяснение:

Еп=gmh

Отсюда h=Eп/(gm)

h=200Дж/(5кг×10Н/кг)=4м

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