Предмет: Физика, автор: grbnk77

Вантаж масою 2,5 кг падає з висоти 10 м. Яка потенціальна енергія вантажу
через 1с після початку
падіння? Початкова швидкість руху Ом/с.
Мой ответ. 20 БАЛОВ!! ​

Ответы

Автор ответа: DedStar
2

Ответ:

Объяснение:

За время t=1 c тело пройдет путь:

S = g·t²/2 = 10·1²/2 = 5 м

Значит, тело находится на высоте:

h = H - S = 10 - 5 = 5 м

и его потенциальная энергия:

Eп = m·g·h = 2,5·10·5 = 125 Дж

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