
William W. answered 03/22/23
Experienced Tutor and Retired Engineer
If I knew the force shown in red in my sketch (we'll call it Fx), then the torque = rFx (radius times force) where the radius is the length of the fishing pole.
To calculate the component of the force (Fx), consider that it makes a 90° angle with the pole, composed of the 20° angle, the 37° angle and, we'll call the rest, angle θ. So θ = 33° (33 + 37 + 20 = 90). To calculate the component of the force perpendicular to the pole, use trig ratios: cos(33°) = Fx/F so Fx = Fcos(33°) = 104cos(33°) = 87.22 N
So the Torque = (2.2)(87.22) = 192 Nm