Answer:
Fde = 1080 N (3 sig fig)
Explanation:
Taking point E
Sum of forces at E in x direction:
Fde cos (30) - Fcd = 0 ..... Eq 1
Sum of forces at E in y direction:
Fde sin (30) - Wf = 0 ..... Eq 2
Wf = m*g = 55 * 9.81 = 539.55 N
Using Eq 2 to evaluate Fde
Fde = Wf / sin (30) = 539.55 / sin (30) = 1079.1 N
Answer: Fde = 1080 N (3 sig fig)
