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 due to gravity is always 9.81 m/s/s, or m/s2  Acceleration is simply the rate of change of velocity, so although acceleration is staying constant, the object is â¦still speeding up as it falls.  In this case the velocity of the object increases by 9.81m/s every second.