... 2. V
A
- 2. q .1 = 2. 3 ,1 - 1, 2. 2 .1 = 4,4.
M
BC
= -2 .V
D
= -2 .2, 2 = -4 ,4
Q
BA
= V
A
- 2. q = 3,4 - 2 .1, 2 = 1; N
BA
= 0.
Q
BC
= 0; N
BC
= -V
D
= -2 ,2.
Taỷi C: M
CB
= -2 .V
D
= -2 .2, 2 ...
4
6
6
2
4
2
(T)
Q
H .28 d
6
6
6 6
(T)
N
H .28 e
4
4
4
12 12
(T.m)
M
H .28 c
C HOĩC KT CU 1 Page 62
ồM
A
= 0 ị
ị...