The diagram represents the straight line motion of a car.Which of the following statements is true? A)The car's speed increases, then it stops, and reverses B)The car accelerates at 6 m/s² for the first 2 s C)The car is moving for a total time of 12 s D)The car accelerates at -12 m/s² for the last 4 s E)The car returns to its starting point when t = 9 s

Question

Quizplus · Accepted Answer

The diagram shows a straight line motion, and the slope of the line is equal to the velocity of the car. The slope of the line in the first 2 seconds is 6 m/s, indicating that the car is accelerating at a rate of 6 m/s². Therefore, option B is true. Option A and D are false, as there is no evidence of the car stopping or reversing, or accelerating at -12 m/s² in the last 4 seconds. Option C is also false, as the motion lasts for 9 seconds, not 12. Option E is also false, as there is no evidence that the car returns to its starting point.

The Diagram Represents the Straight Line Motion of a Car