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.
We therefore will define acceleration as the rate at which velocity changes with time. If an object's velocity is v1 at instant t1 and v2 at instant t2, then we define average acceleration as follows: This definition is an abbreviated statement of the following procedure. Let's see how this definition works in the case of the cart in Figure 2-13a.