Quote (Santara @ Nov 2 2016 07:28am)
Herein lies the misunderstanding. Whether the change is constant or not, the change is what equates to acceleration under the rules of physics. Take planetary orbits for example. There is a constant force (gravity) acting upon the planets in orbit, without which, the planets would careen off into space due to momentum.
Zero change is still a change, zero has value.