Here, the body rotates about a fixed pin or hinge. The center of mass moves in a circle. The solutions manual stresses two critical points:
The is more than just an answer key—it is a roadmap to understanding plane motion. When used ethically, it transforms a frustrating set of problems into a structured learning experience.
Using the Euler's equations for three-dimensional motion, we can relate the torque to the angular momentum:
Chapter 16 of the Vector Mechanics for Engineers: Dynamics, 12th Edition Plane Motion of Rigid Bodies
: Determining normal and friction forces on wheels during braking or acceleration.