Question

position vs time
based on the graph, describe what is happening between 4 and 6 seconds
the object is moving away from the start at a constant speed.
the object is not moving.
the object is returning to the start at a constant speed.
the object is changing speed.

Explanation:

Step1: Analyze position-time graph slope

Slope = velocity; flat line means zero velocity.

Step2: Check time interval 4-6s

Graph is horizontal (slope=0) between 4-6s.

Answer:

The object is not moving.