Here's the question you clicked on:
kcute_face_bhunnie-_-
Henry was given this cool toy for his birthday; he can use it to tell how fast someone is moving at that moment in time. The toy must calculate the person's average velocity. average speed. acceleration. instantaneous speed.
Average velocity and average speed dont give us anything about that moment...
so the answer is acceleration?
umm no, its about that MOMENT, therefore the speed at that instance..
acceleration is change of velocity with time..