Answer
Yes. No.
Work Step by Step
The velocity graph of an object moving with constant acceleration is a straight line. Such a graph can change sign one time, as in Figure 2.25, but not two times.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.