Answer:
Acceleration would be one.
If you accelerate at 5m/s/s you gain more speed.
However, if you accelerate at -5m/s/s you lose speed.
In this context 0 would be you dint gain speed or lose speed you move at the same speed
or
A fish is swimming in a pond 4.5 feet below the pond's top surface, while a falcon is flying in circles over the fish. Jimmy wants to know how many feet the falcon has to fly to reach the fish.
0 represents the pond's surface.
<u><em>Hope this helps!</em></u>
