Chapter 13, titled , contains:
The manual would then add a note: This assumes the spring is light and frictionless. For a vertical guide, the weight does work over the compression distance as well—this problem assumes horizontal compression after vertical drop. Chapter 13, titled , contains: The manual would
Tangential and Normal coordinates are ideal here. At the exact crest, the normal direction points straight down toward the center of curvature. Equation Setup: At the exact crest, the normal direction points
Equate the sum of the forces from your FBD to the corresponding acceleration components from your KED. At the exact crest
Problems that mix spring forces (conservative) with friction (non‑conservative) are the most challenging. The solutions manual explicitly writes the conservation‑of‑energy equation with the work done by friction as a separate term, then shows how to solve for the unknown.