Предмет: Физика, автор: rishkevich23vik

Поезд массой 10 тонн за 1 минуту увеличил скорость с 54 до 74 км/ч.Найти силу тяги,если коэффициент сопротивления движению равен 0,003

Ответы

Автор ответа: Человечище1
0
Fтяги=ma+Fтрения
Fтяги=10*10^3*0,8+3*10^-3*10^10^3*10=8300
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