- #1
Jhenrique
- 685
- 4
When the 2nd order ODE (ay''+by'+cy=0) is taught, is said that the elastic force is proportional to displacement and that the damping force is proportional to velocity, but I never heard the following proposition: "the inertial force is proportional to acceleration (and the constant of proportionality is the mass)". Such proposition/interpretation is correct?