Final answer:
The body acceleration each time the velocity is zero can be zero, constant with some positive value, or undefined.
Step-by-step explanation:
The body acceleration each time the velocity is zero depends on the specific scenario. It can be constant with some positive value, zero, or undefined. The scenario determines the behavior of the object.
If the acceleration is zero when the velocity is zero, it means the object is momentarily at rest. In this case, the object's speed becomes zero, but it can still have an acceleration at other points in time.
If the acceleration is constant with some positive value and the average velocity is either 1.25 m/s or 0.25 m/s, it means the object maintains a consistent acceleration throughout its motion, regardless of the velocity.