what is happening in the graph between 30 and 40 minutes? sarah is accelerating sarah is travelling at a…

what is happening in the graph between 30 and 40 minutes? sarah is accelerating sarah is travelling at a constant speed sarah is slowing down sarah is not moving
Answer
Answer:
D. Sarah is not moving
Explanation:
Step1: Analyze graph slope
In a distance - time graph, slope represents speed.
Step2: Check slope between 30 - 40 minutes
The graph is horizontal in this time interval. A horizontal line has a slope of 0.
Step3: Determine motion
Since slope (speed) is 0, Sarah is not moving.