Предмет: Физика, автор: egorkavolkov2017

Найдите силу тяги, которую развивает мотор автомабиля, движущигося в гору с постоянным ускорением 1м/с2. Масса автомабиля ровна 1000 кг. Угол уклона составляет 30 градусов. Коэффициент трения составляет 0.1

Ответы

Автор ответа: zahar2005007

запишем второй закон нютона

N+m*g+F+F1=m*a где f1 это сила трения а F сила тяги

найдем проекции на оси х и у

затем получим уравнение

F-K*M*G-*COSX+M*G*SINX=M*A

Туть неизвестен m найдем егго с помошью P

P=m*g m=P/g

тепер подставим и найдем

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