Subtopic: Hitch systems and hitching of tillage implements
Question Statement:
A tractor exerts a pull of $P = 10.0\text{ kN}$ on a trailed offset disc harrow at an angle of $\theta = 12^\circ$ to the longitudinal direction of forward motion. The lateral side draft force acting perpendicular to the direction of travel in $\text{kN}$ is ________ (round off to 2 decimal places).
Answer Key:
2.08
Step-by-Step Solution & Explanation
The lateral side draft force $F_y$ is the transverse component of the pull force:
$F_y = P \sin(\theta) = 10.0\text{ kN} \times \sin(12^\circ)$
$\sin(12^\circ) \approx 0.20791$
$F_y = 10.0 \times 0.20791 = 2.0791\text{ kN} \approx 2.08\text{ kN}$