Can you have zero velocity and nonzero average acceleration? Zero velocity and nonzero acceleration? Use a ?v?x-?t graph to explain, and give an example of such motion.

Answer: Acceleration is the change in velocity of an object per unit time. So if the velocity remains constant for a particular time period, then the change in velocity per unit time is zero. Therefore, The acceleration is zero. Hence, constant velocity is an example of zero acceleration with non zero velocity. Example: In below given graph, till 2 Seconds we can see that velocity is zero it means acceleration is zero. It means an object which is at rest or moving with constant velocity will have zero acceleration.