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.

16. In the acceleration versus time graphs for the motorbikes, positive acceleration values are graphed above the horizontal (time) axis and negative acceleration values are graphed below the horizontal axis. The velocity of the motorbike with negative acceleration:

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

The definition of acceleration is the change in speed divided by the time taken. A negative acceleration means that the change in speed is negative, that is to say, it is decelerating