To determine whether either object has a constant velocity, we need more context about the objects in question (objects C and D) and their motion (e.g., are they moving in a straight line at a constant speed, or are they accelerating or changing direction?).
- Constant velocity means an object moves in a straight line without changing speed or direction.
- If object C is moving at a steady speed in a straight line, then it would have a constant velocity.
- If object D has varying speed or is changing direction, then it would not have a constant velocity.
Please provide more information about the motions of objects C and D for a conclusive answer.