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.
Look at the slope on the previous graph of velocity vs time. The slope on the velocity vs time graph equals the acceleration. Let's change the situation again. Instead of the car traveling at a constant acceleration suppose its acceleration changes by 1 m/s 2 every second.