Answer:
The answer is 5.69 N-ft.
Explanation:
Horizontal component of 70 lb force = 70 * cos 26 = 62.9 lb (to right)
r = 3.4 ft
T1 = r*F
= 62.9 lb * 3.4 ft
= 213.86 N-ft (CW)
Vertical component of 70 lb force = 70 * sin 26 = 30.7 lb (down)
r= 2.5 ft
T2 = r*F
= 2.5* 30.7
= 76.75 N-ft (CCW)
for 34 lb force,
r = 4.2 ft
T3 = r*F
= 4.2 * 34
= 142.8 N-ft (CCW)
Net T = -213.86 + 76.75 + 142.8
= 5.69 N-ft
(I have taken 213.86 as negative because it is acting in clockwise direction)
Therefore the answer is 5.69 N-ft
