Ответ:
140 H
Объяснение:
l/L=0.5 m=42 кг F=?
===
F*(L+l) - m*g*l=0
L=2*l
F=m*g*l/(2*l+l)=m*g/3=42*10/3=140 H
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Verified answer
Ответ:
140 H
Объяснение:
l/L=0.5 m=42 кг F=?
===
F*(L+l) - m*g*l=0
L=2*l
F=m*g*l/(2*l+l)=m*g/3=42*10/3=140 H
=============================