. FK1 −¿ FX 11 = 14 89,5 +¿ 288,47– 565,89 = 11 21, 08 (N)Ta có : Fr10 = √FX102+FY102 = √ 11 21, 082 +16 9, 81 2 = 11 33,87 (N) Fr 11 . Fa 11 VFr 11 = 693, 51 629,79 = 1, 10 > e tra bảng 11 .4 trang 215 ⇒ X = 0,45 , Y = 1, 71 Vậy Q0 = (1. 113 3,87 + 0.363,84) = 11 33,87 (N) Q 1 =...