On the Velocity-Time graph, the black line represents the red truck. What does a flat line, that has zero slope, mean on a Velocity-Time graph? Explain why.
A flat line on a Velocity-Time graph, with zero slope, represents that the object is at a constant velocity. This means that the object is moving at a uniform speed and in a straight line without any change in its velocity over time.
The slope of a Velocity-Time graph represents the acceleration of the object. When the slope is zero, it indicates that there is no change in velocity over time. In other words, the object is not accelerating. It maintains a steady velocity throughout the period represented on the graph.
This can occur when an object is either stationary (not moving at all) or moving at a constant speed. For example, if a car is traveling on a highway at a constant speed of 60 mph, its Velocity-Time graph would show a flat line at 60 mph.
In conclusion, a flat line with zero slope on a Velocity-Time graph indicates that the object is moving at a constant velocity, either because it is not moving at all or because it is moving at a steady speed without any change in velocity.