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.
Acceleration is defined as the change in speed (or velocity) divided by the time interval of the. change. The 25 km/hr - 30 km/hr change is 5 km/hr compared to the 4 km/hr change for the higher speeds and since the time interval is the same, the 25-30 km/hr change results in the greatest acceleration.