October 2021 0 20 Report
Трактор, двигаясь равномерно за время t проходит путь S. При этом сила тяги двигателя равна F, а полезная мощность двигателя - N. Определите A(Дж) Дано:
F=20H
a=60°
S=15м
k=4
A-?
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