In a time-position graph where the velocity of an object is constant, the graph will be a straight line.
- If the velocity is positive (the object moves away from the starting point), the slope of the line will be positive, indicating that the object's position increases over time.
- If the velocity is negative (the object moves toward the starting point), the slope of the line will be negative, indicating that the object's position decreases over time.
- If the line is horizontal (a slope of zero), it indicates that the object is stationary and not moving at all.
Given these observations, the correct response would be:
- The slope of the line is positive, and the object is in motion (if velocity is positive).
- The slope of the line is negative, and the object is in motion (if velocity is negative).
- The slope of the line is equal to zero and the object is stationary (if velocity is zero).
To summarize, each scenario reflects different conditions based on the slope indicating velocity (positive, negative, or zero).