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виктор1973
@виктор1973
July 2022
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срочно очень надо решить 7 номер и 8 номер
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fatt52
Verified answer
7)
m1=0.05 кг L1=0.2 L2=0.3 F2=?
mo=4*m1=4*0.05=0.2 кг
F1=mo*g=0.2*10=2 H
F1*L1=F2*L2
F2=F1*L1/L2=2*0.2/0.3=1.3 H
========================
8)
m=0.3 кг L1=10 L2=15 (по рисунку)
m*g*L1=F*L2
F=m*g*L1/L2=0.3*10*10/15=2 H
==========================
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Answers & Comments
Verified answer
7)m1=0.05 кг L1=0.2 L2=0.3 F2=?
mo=4*m1=4*0.05=0.2 кг
F1=mo*g=0.2*10=2 H
F1*L1=F2*L2
F2=F1*L1/L2=2*0.2/0.3=1.3 H
========================
8)
m=0.3 кг L1=10 L2=15 (по рисунку)
m*g*L1=F*L2
F=m*g*L1/L2=0.3*10*10/15=2 H
==========================