Куда направлена сила трения покоя при ходьбе человека? а) вверх б) в сторону, противоположную движению в) по ходу движения
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24.04.2019 10:20
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ответ б правильний потомучто сила тертя направлена против человека
ответ б - в сторону противоположную движению