Dynamics relies heavily on 3D vector components; be comfortable with cross and dot products. Check Units:

The problems in the 3rd edition are legendary. They start with simple, straight-forward lever-and-pulley systems (Statics) and progress to complex, multi-body dynamics problems involving dependent motion and curvilinear translation. Unlike modern problems that sometimes feel designed for an answer key, Singer’s problems often require you to think sideways. There is no "plug-and-chug." You must interpret the problem, extract the hidden data, and apply first principles.

Focus on centroids, centers of gravity, and moments of inertia. Part II: Dynamics

: Examines the motion of particles and rigid bodies under the influence of forces. Key topics include: Kinematics and Kinetics