The object represented by this graph is moving A. away from the origin at a constant velocity.
B. away from the origin at a decreasing velocity.
C. toward the origin at a constant velocity.
D. toward the origin at a decreasing velocity.

Give an example for each of the following situations: 1) negative acceleration, but positive velocity 2) positive acceleration and positive velocity 3) positive acceleration, but negative velocity 4) negative acceleration and negative velocity 5) positive velocity and no acceleration