Odpowiedź:
ΣMA: -2P*a-M+RB*4a-P*5a=0
M=P*a
RB=(2Pa+Pa+5Pa)/4a
RB=8P/4=2P
ΣPy: RA-2P+RB-P=0
RB=2P
RA=2P-2P+P
RA=P
ΣPx=0
Wyjaśnienie:
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Odpowiedź:
ΣMA: -2P*a-M+RB*4a-P*5a=0
M=P*a
RB=(2Pa+Pa+5Pa)/4a
RB=8P/4=2P
ΣPy: RA-2P+RB-P=0
RB=2P
RA=2P-2P+P
RA=P
ΣPx=0
Wyjaśnienie: