Final answer:
The position vs time graph of an object that is speeding up is not a straight line.
Step-by-step explanation:
The answer is b. False. The position vs time graph of an object that is speeding up is not a straight line. When an object is speeding up, it means that its velocity is increasing over time. This is represented by a curved line on a position vs time graph. A straight line on a position vs time graph would indicate a constant velocity, not speeding up.