For an individual mouldboard plough bottom having width of cut $w$ and depth of cut $d$, the center of resistance in the horizontal plane is approximately located at:
Options:
(A) $w/4$ to $w/3$ from the landside toward the furrow slice
(B) Exactly on the landside edge
(C) At the outermost wing of the mouldboard
(D) Outside the furrow wall
Answer Key:
A
Step-by-Step Solution & Explanation
Due to the combined cutting force of the share and lifting/inversion forces of the mouldboard, the center of resistance in the horizontal plane is located approximately one-fourth to one-third of the width of cut away from the landside toward the open furrow.