QUESTION 16 During the time that the acceleration of a partide is zero, its velocity vs. time graph is a horizontal line. True False

True! When the acceleration of a particle is zero, it means that the velocity is constant. On a velocity vs. time graph, this is represented as a horizontal line, indicating that the particle is moving at a steady speed with no increase or decrease in velocity over time. If you think of riding a bicycle at a constant speed on a flat road, your velocity remains unchanged, and your graph would mirror that flat line. On the flip side, if you hit the brakes or speed up, the graph would start showing a slope, depicting a change in velocity.