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natalikostenko
@natalikostenko
June 2022
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дано задача l=7см F1=2,8кн l2=4,2 см знайты F2-?
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solvo
L=7см F1=2,8кн l2=4,2 см знайти F2-?F1/F2=l2/l1; F2=F1l1/l2=2,8*7/4,2=4,7 кН.
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