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 caused by a force, eg gravity or friction, acting on a moving object. The relationship between force, mass and acceleration is expressed in the equation 'force = mass x acceleration'. The stopping distance of a car depends on two factors - thinking distance and braking distance.