ancillae. 1  nominative plural of. 2  genitive singular of. 3  dative singular of.  vocative plural of.
Acceleration is the time rate of change of velocity. If velocity is constant, then. acceleration is zero. Note: 100 km per h for 10 seconds is a constant speed, but not necessarily a constant. velocity, since we're told nothing about the direction.
1 Acceleration is the rate at which an object is increasing in speed. 2  It is described as a unit of distance (meters, kilometers, feet, miles, etc.) divided by a unit of time (usually seconds) squared. 3  One of the most commonly used numbers in physics is 9.8 m/s(2).