EXERCISE

This closing exercise set tests every idea developed in the unit, across five question formats:

• Multiple-choice questions probing conceptual traps — the three types of inertia, static/kinetic friction, force-vs-motion direction, and the centripetal/centrifugal distinction.
• Short-answer and long-answer questions requiring full statements, derivations, and proofs — conservation of momentum, Lami's theorem, connected-body motion, and the angle of repose.
• Conceptual questions testing qualitative understanding without calculation. …