Which of the following statements describes the relationship between joint reaction forces and the translational/rotatory component forces?
a. The contact force and translation component force run parallel to each other.
b. The contact force and rotatory component force run parallel to each other.
c. The shear force and translation component force run parallel to each other.
ANS: A
The contact force runs perpendicular to the joint surface which is in the same plane as the lever.
The translational force runs parallel with the lever; therefore, these two forces run parallel to each
other.
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