This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Chronogrammes enregistrement generiques mr trapeze.svg en Generic recording and curves of acceleration speed and position vs time for circular motion with three phases constant acceleration start uniform motion constant deceleration stop fr Enregistrement et chronogrammes gnriques pour un mouvement de rotation en trois phases acclration