Final answer:
The question involves calculating the initial velocity of an object that decelerates to rest, which is given as 5 m/s.
Step-by-step explanation:
The student's question pertains to an object decelerating to a stop over a given amount of time. The initial velocity of the object is stated as being 5 m/s. This can be confirmed through the concept of deceleration, which is a negative acceleration leading to a decrease in velocity over time until the object comes to rest.