Question

A spacecraft is traveling in interplanetary space at a constant velocity. What is the estimated distance traveled by the spacecraft in 9.50 seconds?

Answer 1

You haven't said what the constant velocity is, so the best answer that
I can give you is

    Distance = (9.5) times (magnitude of the velocity, in meters per second) .

Answer 2

What is the constant velocity? 
We need that number in order to solve the problem
Or
It has a graph in which it describes the different acceleration