3. When does the acceleration vector appear? Describe the direction it alw; [ answer] 4. Change the Remote Control to "Velocity" and then "Acceleration." How a images different from the "Position" image, and why do they look the wa [ answer] * Change the Choose Motion to "Circular." 5. Describe the velocity vector and how it changes. [answer] 6. Describe the acceleration vector and how it changes. [answer] Change the Choose Motion to "Ellipse."