Предмет: Физика, автор: ololo007

Тело массой 5 кг с помощью каната равноускоренно поднимают вертикально вверх. На какую высоту поднимется груз за 3 секунды если на канат действует сила 63,3 Н

Ответы

Автор ответа: aaabbbvvv841
10
Второй закон Ньютона, делаем проекцию на ось у: F-mg=ma; Находим а= (F-mg)/m; а=2.66 м/c; Высота равна at²/2 = 2.66*9/2=11.97 м
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