Предмет:
ФизикаАвтор:
aureliabailey1)
формула работы A=F*S=F*v*t
скорость есть
перемещение есть
сила есть
какая разница увеличит скорость или уменьшит -работа будет
2)
мощность P=A / t = F*v*t / t =F v = 239 кН * 36 км/ч = 239000 Н * 10 м/с = 2390000 Вт=2.39 кВт
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