Предмет: Физика, автор: мрррррррррррррррр

Решите пожалуйста! . .

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Автор ответа: barabul4ik

1

Ответ:

F=m*a. a=F/m. F=F1+F2 a=45/15=3м/с^2 №1 вар.

F=m*a. m=F/a. F=F1+F2 F1=20000 F2=-5000 m=20000-5000/5=3000кг№1 вар 2

Объяснение:дальше решить не успею

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