Question

show what you know! what does a flat horizontal section on a distance - time graph represent? the object is not moving and is stationary. the object is moving at a constant speed. the object is accelerating. the object is moving in reverse.

Explanation:

Step1: Recall the relationship between distance - time graph and motion

In a distance - time graph, the slope of the graph represents the speed of the object. The formula for speed \(v=\frac{\Delta d}{\Delta t}\), where \(\Delta d\) is the change in distance and \(\Delta t\) is the change in time.

Step2: Analyze the slope for a flat horizontal section

For a flat horizontal section on a distance - time graph, \(\Delta d = 0\) (because the distance \(d\) does not change with time \(t\)). Using the speed formula \(v=\frac{\Delta d}{\Delta t}\), when \(\Delta d = 0\), \(v = 0\) (assuming \(\Delta t>0\)). When the speed \(v = 0\), the object is not moving.

Answer:

The object is not moving and is stationary.