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.
Best Answer: This is centripetal acceleration. Although there is no change in speed, there is a force and hence (by Newton's second law) an acceleration necessary to keep the object traveling in a circle. Mathematically, it is equal to v^2 / r or equivalently the velocity squared divided by the radius of the circle. constant speed means there is no acceleration.