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. 33.
Σ A =4 q 4 M 10 RB + 12 P = 0,
RB = (4 q 4 10 + 12 P) / 10 = (4 5 4 10 + 12 15) / 10 = 25 .
Σ B = 4 q 6 M + 10 RA + 2 P = 0,
RA = (4 5 6 + 10 2 P) / 10 = (4 5 6 + 10 2 15) / 10 = 10 . ΣF X = HA = 0.
ΣF Y = RA + RB P 4 q = 10 + 25 15 4 5 = 35 35 = 0.
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. 34
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ΣF x = N1 = 0, N1 = 0 ΣF y = RA Q1 = 0 Q1 = 10 , ΣM1 = 1 = 0 1 = 0 . | |
ΣF x = N2 = 0, N2 = 0 ΣF y = RA Q2 = 0 Q2 = 10 , ΣM2 = 2 +2 RA = 0 2 = 20 . | |
ΣF x = N3 = 0, N3 = 0 ΣF y = RA 2 q Q3 = 0 Q3 = 0 , ΣM3 = 3 +4 RA 2 q 1 = 0 3 = 30 . | |
ΣF x = N4 = 0, N4 = 0 ΣF y = RA 4 q Q4 = 0 Q4 = 10 , ΣM 4 = 6 RA 4 q 2 4 = 0 4 = 20 . | |
58 , . | |
ΣF x = N5 = 0, N5 = 0 ΣF y = R + Q5 = 0 Q5 = 10 , ΣM5 = 5 4 R +6 = 0 5 = 10 . | |
ΣF x = N6 = 0, N6 = 0 ΣF y = R + Q6 = 0 Q6 = 10 , ΣM6 = 6 +2 = 0 6 = 30 . | |
ΣF x = N7 = 0, N7 = 0 ΣF y = + Q7 = 0 Q7 = 15 , ΣM7 = 7 +2 = 0 7 = 30 . | |
ΣF x = N8 = 0, N8 = 0 ΣF y = + Q8 = 0 Q8 = 15 , ΣM8 = 8 = 0 8 = 0 . |
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