Passage III

The 3 sets of graphs below represent the motion of 3 different motorbikes on a straight track. The top graph in each set shows the distance of the motorbike from the starting line versus elapsed time. The middle graph in each set shows the velocity of the motorbike versus elapsed time. The bottom graph in each set shows the acceleration of the motorbike (the rate at which the motorbike's velocity changes) versus elapsed time.

14. According to the distance versus time graphs, which motorbike(s) is(are) NOT at the starting line at time = 0?

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

For each motorcycle, the vertical coordinates of the three pictures are moving distance, speed and acceleration respectively. To see which motorcycle is not at the starting point at the beginning, just look at the picture on the top row that has not passed the origin.