The velocity vs time graph at the rightshows the motion of two cars over time.At t=0, Car X and Car Y are right nextto each other. At t=40 s compare thecar's accelerations.

The slope of a velocity time graph gives the value of acceleration of car. The slope of car X at t=40 s is less than the slope of car Y. Therefore, the acceleration of car X is less than the acceleration of car Y at t=40 s.