# Cam-follower spring preload
# Scope: Preload reserve against a supplied separating inertial force.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

mass = 0.2 kg
separatingAcceleration = 20 m/s^2
preload = 10 N

inertia := mass*separatingAcceleration [N]
reserve := preload-inertia [N]

check contact reserve: reserve > 0 N

scenario alternative: mass = 0.16 kg