a constant velocity graph is a straight line because the object covers equal distances in equal intervals of time, indicating a steady and unchanging speed.
Step-by-step explanation:
A constant velocity graph represents the motion of an object with a steady and unchanging speed in a specific direction. The reason it is a straight line is because the object covers the same distance in equal intervals of time.
When an object maintains a constant velocity, it means it is moving at the same speed without any changes. Therefore, for each equal time interval, the object covers the same distance.
Since the distance covered is consistent over equal time intervals, the position-time graph will be a straight line since the object continues to move steadily without any acceleration or deceleration.